Windows Server 20122012 R2 Domain Controller V2R15 (SCAP)

c

Systems must be maintained at a supported service pack level.

RMF Control: CM-6
Severity: H
CCI: CCI-000366
Version: WN12-GE-000001
Vuln IDs: V-1073
Rule IDs: SV-53189r2_rule

Systems at unsupported service packs or releases will not receive security updates for new vulnerabilities, which leave them subject to exploitation. Systems must be maintained at a service pack level supported by the vendor with new security updates.

Fix: F-46115r1_fix

Update the system to a supported release or service pack level.

a

The shutdown option must not be available from the logon dialog box.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-SO-000073
Vuln IDs: V-1075
Rule IDs: SV-52840r1_rule

Displaying the shutdown button may allow individuals to shut down a system anonymously. Only authenticated users should be allowed to shut down the system. Preventing display of this button in the logon dialog box ensures that individuals who shut down the system are authorized and tracked in the system's Security event log.

Fix: F-45766r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Shutdown: Allow system to be shutdown without having to log on" to "Disabled".

c

Local volumes must use a format that supports NTFS attributes.

RMF Control: AC-3
Severity: H
CCI: CCI-000213
Version: WN12-GE-000005
Vuln IDs: V-1081
Rule IDs: SV-52843r3_rule

The ability to set access permissions and auditing is critical to maintaining the security and proper access controls of a system. To support this, local volumes must be formatted using a file system that supports NTFS attributes.

Fix: F-81015r1_fix

Format local volumes to use NTFS or ReFS.

b

The required legal notice must be configured to display before console logon.

RMF Control: AC-8
Severity: M
CCI: CCI-000048
Version: WN12-SO-000022
Vuln IDs: V-1089
Rule IDs: SV-52845r3_rule

Failure to display the logon banner prior to a logon attempt will negate legal proceedings resulting from unauthorized access to system resources.

Fix: F-45771r3_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Interactive Logon: Message text for users attempting to log on" to the following: You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details.

a

Caching of logon credentials must be limited.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-SO-000024
Vuln IDs: V-1090
Rule IDs: SV-52846r2_rule

The default Windows configuration caches the last logon credentials for users who log on interactively to a system. This feature is provided for system availability reasons, such as the user's machine being disconnected from the network or domain controllers being unavailable. Even though the credential cache is well-protected, if a system is attacked, an unauthorized individual may isolate the password to a domain user account using a password-cracking program and gain access to the domain.

Fix: F-66507r2_fix

If the system is not a member of a domain, this is NA. Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Interactive Logon: Number of previous logons to cache (in case Domain Controller is not available)" to "4" logons or less.

c

Anonymous enumeration of shares must be restricted.

RMF Control: SC-4
Severity: H
CCI: CCI-001090
Version: WN12-SO-000052
Vuln IDs: V-1093
Rule IDs: SV-52847r1_rule

Allowing anonymous logon users (null session connections) to list all account names and enumerate all shared resources can provide a map of potential points to attack the system.

Fix: F-45773r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network access: Do not allow anonymous enumeration of SAM accounts and shares" to "Enabled".

b

The number of allowed bad logon attempts must meet minimum requirements.

RMF Control: AC-7
Severity: M
CCI: CCI-000044
Version: WN12-AC-000002
Vuln IDs: V-1097
Rule IDs: SV-52848r1_rule

The account lockout feature, when enabled, prevents brute-force password attacks on the system. The higher this value is, the less effective the account lockout feature will be in protecting the local system. The number of bad logon attempts must be reasonably small to minimize the possibility of a successful password attack, while allowing for honest errors made during a normal user logon.

Fix: F-45774r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Account Lockout Policy -> "Account lockout threshold" to "3" or less invalid logon attempts (excluding "0" which is unacceptable).

b

The reset period for the account lockout counter must be configured to 15 minutes or greater on Windows 2012.

RMF Control: AC-7
Severity: M
CCI: CCI-000044
Version: WN12-AC-000003
Vuln IDs: V-1098
Rule IDs: SV-52849r2_rule

The account lockout feature, when enabled, prevents brute-force password attacks on the system. This parameter specifies the period of time that must pass after failed logon attempts before the counter is reset to "0". The smaller this value is, the less effective the account lockout feature will be in protecting the local system.

Fix: F-81025r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Account Lockout Policy >> "Reset account lockout counter after" to at least "15" minutes.

b

Windows 2012 account lockout duration must be configured to 15 minutes or greater.

RMF Control: AC-7
Severity: M
CCI: CCI-002238
Version: WN12-AC-000001
Vuln IDs: V-1099
Rule IDs: SV-52850r2_rule

The account lockout feature, when enabled, prevents brute-force password attacks on the system. This parameter specifies the period of time that an account will remain locked after the specified number of failed logon attempts.

Fix: F-81027r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Account Lockout Policy >> "Account lockout duration" to "15" minutes or greater. A value of "0" is also acceptable, requiring an administrator to unlock the account.

c

The Act as part of the operating system user right must not be assigned to any groups or accounts.

RMF Control: AC-6
Severity: H
CCI: CCI-002235
Version: WN12-UR-000003
Vuln IDs: V-1102
Rule IDs: SV-52108r3_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Act as part of the operating system" user right can assume the identity of any user and gain access to resources that user is authorized to access. Any accounts with this right can take complete control of a system.

Fix: F-45133r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Act as part of the operating system" to be defined but containing no entries (blank).

b

The maximum password age must meet requirements.

RMF Control: IA-5
Severity: M
CCI: CCI-000199
Version: WN12-AC-000005
Vuln IDs: V-1104
Rule IDs: SV-52851r1_rule

The longer a password is in use, the greater the opportunity for someone to gain unauthorized knowledge of the passwords. Scheduled changing of passwords hinders the ability of unauthorized system users to crack passwords and gain access to a system.

Fix: F-45777r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Password Policy -> "Maximum password age" to "60" days or less (excluding "0" which is unacceptable).

b

The minimum password age must meet requirements.

RMF Control: IA-5
Severity: M
CCI: CCI-000198
Version: WN12-AC-000006
Vuln IDs: V-1105
Rule IDs: SV-52852r1_rule

Permitting passwords to be changed in immediate succession within the same day allows users to cycle passwords through their history database. This enables users to effectively negate the purpose of mandating periodic password changes.

Fix: F-45778r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Password Policy -> "Minimum password age" to at least "1" day.

b

The password history must be configured to 24 passwords remembered.

RMF Control: IA-5
Severity: M
CCI: CCI-000200
Version: WN12-AC-000004
Vuln IDs: V-1107
Rule IDs: SV-52853r2_rule

A system is more vulnerable to unauthorized access when system users recycle the same password several times without being required to change to a unique password on a regularly scheduled basis. This enables users to effectively negate the purpose of mandating periodic password changes. The default value is 24 for Windows domain systems. DoD has decided this is the appropriate value for all Windows systems.

Fix: F-74885r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Password Policy >> "Enforce password history" to "24" passwords remembered.

b

The built-in guest account must be disabled.

RMF Control: IA-8
Severity: M
CCI: CCI-000804
Version: WN12-SO-000003
Vuln IDs: V-1113
Rule IDs: SV-52855r1_rule

A system faces an increased vulnerability threat if the built-in guest account is not disabled. This account is a known account that exists on all Windows systems and cannot be deleted. This account is initialized during the installation of the operating system with no password assigned.

Fix: F-45781r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Accounts: Guest account status" to "Disabled".

b

The built-in guest account must be renamed.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-SO-000006
Vuln IDs: V-1114
Rule IDs: SV-52856r1_rule

The built-in guest account is a well-known user account on all Windows systems and, as initially installed, does not require a password. This can allow access to system resources by unauthorized users. Renaming this account to an unidentified name improves the protection of this account and the system.

Fix: F-45782r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Accounts: Rename guest account" to a name other than "Guest".

b

The built-in administrator account must be renamed.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-SO-000005
Vuln IDs: V-1115
Rule IDs: SV-52857r1_rule

The built-in administrator account is a well-known account subject to attack. Renaming this account to an unidentified name improves the protection of this account and the system.

Fix: F-45783r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Accounts: Rename administrator account" to a name other than "Administrator".

a

Users must be forcibly disconnected when their logon hours expire.

RMF Control: SC-10
Severity: L
CCI: CCI-001133
Version: WN12-SO-000034
Vuln IDs: V-1136
Rule IDs: SV-52860r1_rule

Users must not be permitted to remain logged on to the network after they have exceeded their permitted logon hours. In many cases, this indicates that a user forgot to log off before leaving for the day. However, it may also indicate that a user is attempting unauthorized access at a time when the system may be less closely monitored. Forcibly disconnecting users when logon hours expire protects critical and sensitive network data from exposure to unauthorized personnel with physical access to the computer.

Fix: F-45786r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Microsoft network server: Disconnect clients when logon hours expire" to "Enabled".

b

Unencrypted passwords must not be sent to third-party SMB Servers.

RMF Control: IA-5
Severity: M
CCI: CCI-000197
Version: WN12-SO-000030
Vuln IDs: V-1141
Rule IDs: SV-52861r2_rule

Some non-Microsoft SMB servers only support unencrypted (plain text) password authentication. Sending plain text passwords across the network, when authenticating to an SMB server, reduces the overall security of the environment. Check with the vendor of the SMB server to see if there is a way to support encrypted password authentication.

Fix: F-45787r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Microsoft Network Client: Send unencrypted password to third-party SMB servers" to "Disabled".

b

Automatic logons must be disabled.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-SO-000036
Vuln IDs: V-1145
Rule IDs: SV-52107r2_rule

Allowing a system to automatically log on when the machine is booted could give access to any unauthorized individual who restarts the computer. Automatic logon with administrator privileges would give full access to an unauthorized individual.If the DefaultName or DefaultDomainName in the same registry path contain an administrator account name and the DefaultPassword contains a value, this is a CAT I finding.

Fix: F-45132r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "MSS: (AutoAdminLogon) Enable Automatic Logon (not recommended)" to "Disabled". Ensure no passwords are stored in the "DefaultPassword" registry value noted below: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Microsoft\Windows NT\CurrentVersion\Winlogon\ Value Name: DefaultPassword (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

b

The built-in Windows password complexity policy must be enabled.

RMF Control: IA-5
Severity: M
CCI: CCI-000192
Version: WN12-AC-000008
Vuln IDs: V-1150
Rule IDs: SV-52863r2_rule

The use of complex passwords increases their strength against attack. The built-in Windows password complexity policy requires passwords to contain at least 3 of the 4 types of characters (numbers, upper- and lower-case letters, and special characters), as well as preventing the inclusion of user names or parts of.

Fix: F-45789r2_fix

Configure the policy value for Computer Configuration >> Windows Settings -> Security Settings >> Account Policies >> Password Policy >> "Password must meet complexity requirements" to "Enabled".

a

The print driver installation privilege must be restricted to administrators.

RMF Control: CM-11
Severity: L
CCI: CCI-001812
Version: WN12-SO-000089
Vuln IDs: V-1151
Rule IDs: SV-52214r2_rule

Allowing users to install drivers can introduce malware or cause the instability of a system. Print driver installation should be restricted to administrators.

Fix: F-45233r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Devices: Prevent users from installing printer drivers" to "Enabled".

c

Anonymous access to the registry must be restricted.

RMF Control: AC-6
Severity: H
CCI: CCI-002235
Version: WN12-RG-000004
Vuln IDs: V-1152
Rule IDs: SV-52864r3_rule

The registry is integral to the function, security, and stability of the Windows system. Some processes may require anonymous access to the registry. This must be limited to properly protect the system.

Fix: F-80411r1_fix

Maintain permissions at least as restrictive as the defaults listed below for the "winreg" registry key. It is recommended to not change the permissions from the defaults. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurePipeServers\winreg\ The following are the same for each permission listed: Type - Allow Inherited from - None Columns: Principal - Access - Applies to Administrators - Full Control - This key and subkeys Backup Operators - Read - This key only LOCAL SERVICE - Read - This key and subkeys

c

The LanMan authentication level must be set to send NTLMv2 response only, and to refuse LM and NTLM.

RMF Control: CM-6
Severity: H
CCI: CCI-000366
Version: WN12-SO-000067
Vuln IDs: V-1153
Rule IDs: SV-52865r1_rule

The Kerberos v5 authentication protocol is the default for authentication of users who are logging on to domain accounts. NTLM, which is less secure, is retained in later Windows versions for compatibility with clients and servers that are running earlier versions of Windows or applications that still use it. It is also used to authenticate logons to stand-alone computers that are running later versions.

Fix: F-45791r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network security: LAN Manager authentication level" to "Send NTLMv2 response only. Refuse LM & NTLM".

b

The Ctrl+Alt+Del security attention sequence for logons must be enabled.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-SO-000019
Vuln IDs: V-1154
Rule IDs: SV-52866r1_rule

Disabling the Ctrl+Alt+Del security attention sequence can compromise system security. Because only Windows responds to the Ctrl+Alt+Del security sequence, a user can be assured that any passwords entered following that sequence are sent only to Windows. If the sequence requirement is eliminated, malicious programs can request and receive a user's Windows password. Disabling this sequence also suppresses a custom logon banner.

Fix: F-45792r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Interactive Logon: Do not require CTRL+ALT+DEL" to "Disabled".

b

The Deny access to this computer from the network user right on domain controllers must be configured to prevent unauthenticated access.

RMF Control: AC-3
Severity: M
CCI: CCI-000213
Version: WN12-UR-000017-DC
Vuln IDs: V-1155
Rule IDs: SV-51144r1_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Deny access to this computer from the network" user right defines the accounts that are prevented from logging on from the network. The Guests group must be assigned this right to prevent unauthenticated access.

Fix: F-44301r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Deny access to this computer from the network" to include the following: Guests Group

b

The Smart Card removal option must be configured to Force Logoff or Lock Workstation.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-SO-000027
Vuln IDs: V-1157
Rule IDs: SV-52867r2_rule

Unattended systems are susceptible to unauthorized use and must be locked. Configuring a system to lock when a smart card is removed will ensure the system is inaccessible when unattended.

Fix: F-45793r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Interactive logon: Smart card removal behavior" to "Lock Workstation" or "Force Logoff".

b

The Windows SMB server must perform SMB packet signing when possible.

RMF Control: SC-8
Severity: M
CCI: CCI-002418
Version: WN12-SO-000033
Vuln IDs: V-1162
Rule IDs: SV-52870r2_rule

The server message block (SMB) protocol provides the basis for many network operations. Digitally signed SMB packets aid in preventing man-in-the-middle attacks. If this policy is enabled, the SMB server will negotiate SMB packet signing as requested by the client.

Fix: F-45796r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Microsoft network server: Digitally sign communications (if client agrees)" to "Enabled".

b

Outgoing secure channel traffic must be encrypted when possible.

RMF Control: SC-8
Severity: M
CCI: CCI-002418
Version: WN12-SO-000013
Vuln IDs: V-1163
Rule IDs: SV-52871r3_rule

Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but not all information is encrypted. If this policy is enabled, outgoing secure channel traffic will be encrypted.

Fix: F-45797r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Domain member: Digitally encrypt secure channel data (when possible)" to "Enabled".

b

Outgoing secure channel traffic must be signed when possible.

RMF Control: SC-8
Severity: M
CCI: CCI-002418
Version: WN12-SO-000014
Vuln IDs: V-1164
Rule IDs: SV-52872r3_rule

Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but the channel is not integrity checked. If this policy is enabled, outgoing secure channel traffic will be signed.

Fix: F-45798r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Domain member: Digitally sign secure channel data (when possible)" to "Enabled".

a

The computer account password must not be prevented from being reset.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-SO-000015
Vuln IDs: V-1165
Rule IDs: SV-52873r1_rule

Computer account passwords are changed automatically on a regular basis. Disabling automatic password changes can make the system more vulnerable to malicious access. Frequent password changes can be a significant safeguard for your system. A new password for the computer account will be generated every 30 days.

Fix: F-45799r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Domain member: Disable machine account password changes" to "Disabled".

b

The Windows SMB client must be enabled to perform SMB packet signing when possible.

RMF Control: SC-8
Severity: M
CCI: CCI-002418
Version: WN12-SO-000029
Vuln IDs: V-1166
Rule IDs: SV-52874r2_rule

The server message block (SMB) protocol provides the basis for many network operations. If this policy is enabled, the SMB client will request packet signing when communicating with an SMB server that is enabled or required to perform SMB packet signing.

Fix: F-45800r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Microsoft network client: Digitally sign communications (if server agrees)" to "Enabled".

b

Ejection of removable NTFS media must be restricted to Administrators.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-SO-000011
Vuln IDs: V-1171
Rule IDs: SV-52875r1_rule

Removable hard drives, if they are not properly configured, can be formatted and ejected by users who are not members of the Administrators Group. Formatting and ejecting removable NTFS media must only be done by administrators.

Fix: F-45801r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Devices: Allowed to format and eject removable media" to "Administrators".

a

Users must be warned in advance of their passwords expiring.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-SO-000025
Vuln IDs: V-1172
Rule IDs: SV-52876r1_rule

Creating strong passwords that can be remembered by users requires some thought. By giving the user advance warning, the user has time to construct a sufficiently strong password. This setting configures the system to display a warning to users telling them how many days are left before their password expires.

Fix: F-45802r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Interactive Logon: Prompt user to change password before expiration" to "14" days or more.

a

The default permissions of global system objects must be increased.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-SO-000076
Vuln IDs: V-1173
Rule IDs: SV-52877r1_rule

Windows systems maintain a global list of shared system resources such as DOS device names, mutexes, and semaphores. Each type of object is created with a default DACL that specifies who can access the objects with what permissions. If this policy is enabled, the default DACL is stronger, allowing nonadministrative users to read shared objects, but not modify shared objects that they did not create.

Fix: F-45803r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "System objects: Strengthen default permissions of internal system objects (e.g. Symbolic Links)" to "Enabled".

a

The amount of idle time required before suspending a session must be properly set.

RMF Control: SC-10
Severity: L
CCI: CCI-001133
Version: WN12-SO-000031
Vuln IDs: V-1174
Rule IDs: SV-52878r3_rule

Open sessions can increase the avenues of attack on a system. This setting is used to control when a computer disconnects an inactive SMB session. If client activity resumes, the session is automatically reestablished. This protects critical and sensitive network data from exposure to unauthorized personnel with physical access to the computer.

Fix: F-45804r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Microsoft Network Server: Amount of idle time required before suspending session" to "15" minutes or less.

c

Reversible password encryption must be disabled.

RMF Control: IA-5
Severity: H
CCI: CCI-000196
Version: WN12-AC-000009
Vuln IDs: V-2372
Rule IDs: SV-52880r1_rule

Storing passwords using reversible encryption is essentially the same as storing clear-text versions of the passwords. For this reason, this policy must never be enabled.

Fix: F-45806r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Password Policy -> "Store password using reversible encryption" to "Disabled".

c

Autoplay must be disabled for all drives.

RMF Control: CM-7
Severity: H
CCI: CCI-001764
Version: WN12-CC-000074
Vuln IDs: V-2374
Rule IDs: SV-52879r2_rule

Allowing Autoplay to execute may introduce malicious code to a system. Autoplay begins reading from a drive as soon media is inserted into the drive. As a result, the setup file of programs or music on audio media may start. By default, Autoplay is disabled on removable drives, such as the floppy disk drive (but not the CD-ROM drive) and on network drives. Enabling this policy disables Autoplay on all drives.

Fix: F-45805r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> AutoPlay Policies -> "Turn off AutoPlay" to "Enabled:All Drives".

b

Kerberos user logon restrictions must be enforced.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-AC-000010-DC
Vuln IDs: V-2376
Rule IDs: SV-51160r2_rule

This policy setting determines whether the Kerberos Key Distribution Center (KDC) validates every request for a session ticket against the user rights policy of the target computer. The policy is enabled by default which is the most secure setting for validating access to target resources is not circumvented.ECSC-1

Fix: F-44317r1_fix

Configure the policy value in the Default Domain Policy for Computer Configuration -> Policies -> Windows Settings -> Security Settings -> Account Policies -> Kerberos Policy -> "Enforce user logon restrictions" to "Enabled".

b

The Kerberos service ticket maximum lifetime must be limited to 600 minutes or less.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-AC-000011-DC
Vuln IDs: V-2377
Rule IDs: SV-51162r2_rule

This setting determines the maximum amount of time (in minutes) that a granted session ticket can be used to access a particular service. Session tickets are used only to authenticate new connections with servers. Ongoing operations are not interrupted if the session ticket used to authenticate the connection expires during the connection.ECSC-1

Fix: F-44319r1_fix

Configure the policy value in the Default Domain Policy for Computer Configuration -> Policies -> Windows Settings -> Security Settings -> Account Policies -> Kerberos Policy -> "Maximum lifetime for service ticket" to a maximum of 600 minutes, but not 0 which equates to "Ticket doesn't expire".

b

The Kerberos user ticket lifetime must be limited to 10 hours or less.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-AC-000012-DC
Vuln IDs: V-2378
Rule IDs: SV-51164r2_rule

In Kerberos, there are 2 types of tickets: Ticket Granting Tickets (TGTs) and Service Tickets. Kerberos tickets have a limited lifetime so the time an attacker has to implement an attack is limited. This policy controls how long TGTs can be renewed. With Kerberos, the user's initial authentication to the domain controller results in a TGT which is then used to request Service Tickets to resources. Upon startup, each computer gets a TGT before requesting a service ticket to the domain controller and any other computers it needs to access. For services that startup under a specified user account, users must always get a TGT first, then get Service Tickets to all computers and services accessed.ECSC-1

Fix: F-44321r1_fix

Configure the policy value in the Default Domain Policy for Computer Configuration -> Policies -> Windows Settings -> Security Settings -> Account Policies -> Kerberos Policy -> "Maximum lifetime for user ticket" to a maximum of 10 hours, but not 0 which equates to "Ticket doesn't expire".

b

The Kerberos policy user ticket renewal maximum lifetime must be limited to 7 days or less.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-AC-000013-DC
Vuln IDs: V-2379
Rule IDs: SV-51166r2_rule

This setting determines the period of time (in days) during which a user's TGT may be renewed. This security configuration limits the amount of time an attacker has to crack the TGT and gain access.ECSC-1

Fix: F-44324r1_fix

Configure the policy value in the Default Domain Policy for Computer Configuration -> Policies -> Windows Settings -> Security Settings -> Account Policies -> Kerberos Policy -> "Maximum lifetime for user ticket renewal" to a maximum of 7 days or less.

b

The computer clock synchronization tolerance must be limited to 5 minutes or less.

RMF Control: IA-2
Severity: M
CCI: CCI-001941
Version: WN12-AC-000014-DC
Vuln IDs: V-2380
Rule IDs: SV-51168r3_rule

This setting determines the maximum time difference (in minutes) that Kerberos will tolerate between the time on a client's clock and the time on a server's clock while still considering the two clocks synchronous. In order to prevent replay attacks, Kerberos uses timestamps as part of its protocol definition. For timestamps to work properly, the clocks of the client and the server need to be in sync as much as possible.

Fix: F-44325r1_fix

Configure the policy value in the Default Domain Policy for Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Kerberos Policy -> "Maximum tolerance for computer clock synchronization" to a maximum of 5 minutes or less.

c

Named pipes that can be accessed anonymously must be configured with limited values on domain controllers.

RMF Control: SC-4
Severity: H
CCI: CCI-001090
Version: WN12-SO-000055-DC
Vuln IDs: V-3338
Rule IDs: SV-51138r2_rule

Named pipes that can be accessed anonymously provide the potential for gaining unauthorized system access. Pipes are internal system communications processes. They are identified internally by ID numbers that vary between systems. To make access to these processes easier, these pipes are given names that do not vary between systems. This setting controls which of these pipes anonymous users may access.

Fix: F-44648r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network access: Named pipes that can be accessed anonymously" to only include "netlogon, samr, lsarpc".

c

Unauthorized remotely accessible registry paths must not be configured.

RMF Control: SC-4
Severity: H
CCI: CCI-001090
Version: WN12-SO-000056
Vuln IDs: V-3339
Rule IDs: SV-52883r2_rule

The registry is integral to the function, security, and stability of the Windows system. Some processes may require remote access to the registry. This setting controls which registry paths are accessible from a remote computer. These registry paths must be limited, as they could give unauthorized individuals access to the registry.

Fix: F-45809r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network access: Remotely accessible registry paths" with the following entries: System\CurrentControlSet\Control\ProductOptions System\CurrentControlSet\Control\Server Applications Software\Microsoft\Windows NT\CurrentVersion

c

Network shares that can be accessed anonymously must not be allowed.

RMF Control: SC-4
Severity: H
CCI: CCI-001090
Version: WN12-SO-000059
Vuln IDs: V-3340
Rule IDs: SV-52884r1_rule

Anonymous access to network shares provides the potential for gaining unauthorized system access by network users. This could lead to the exposure or corruption of sensitive data.

Fix: F-45810r1_fix

Ensure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network access: Shares that can be accessed anonymously" contains no entries (blank).

c

Solicited Remote Assistance must not be allowed.

RMF Control: SC-4
Severity: H
CCI: CCI-001090
Version: WN12-CC-000059
Vuln IDs: V-3343
Rule IDs: SV-52885r1_rule

Remote assistance allows another user to view or take control of the local session of a user. Solicited assistance is help that is specifically requested by the local user. This may allow unauthorized parties access to the resources on the computer.

Fix: F-45811r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Remote Assistance -> "Configure Solicited Remote Assistance" to "Disabled".

c

Local accounts with blank passwords must be restricted to prevent access from the network.

RMF Control: CM-6
Severity: H
CCI: CCI-000366
Version: WN12-SO-000004
Vuln IDs: V-3344
Rule IDs: SV-52886r1_rule

An account without a password can allow unauthorized access to a system as only the username would be required. Password policies should prevent accounts with blank passwords from existing on a system. However, if a local account with a blank password did exist, enabling this setting will prevent network access, limiting the account to local console logon only.

Fix: F-45812r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Accounts: Limit local account use of blank passwords to console logon only" to "Enabled".

a

The maximum age for machine account passwords must be set to requirements.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-SO-000016
Vuln IDs: V-3373
Rule IDs: SV-52887r1_rule

Computer account passwords are changed automatically on a regular basis. This setting controls the maximum password age that a machine account may have. This setting must be set to no more than 30 days, ensuring the machine changes its password monthly.

Fix: F-45813r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Domain member: Maximum machine account password age" to "30" or less (excluding "0" which is unacceptable).

b

The system must be configured to require a strong session key.

RMF Control: SC-8
Severity: M
CCI: CCI-002418
Version: WN12-SO-000017
Vuln IDs: V-3374
Rule IDs: SV-52888r2_rule

A computer connecting to a domain controller will establish a secure channel. Requiring strong session keys enforces 128-bit encryption between systems.

Fix: F-45814r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Domain member: Require strong (Windows 2000 or Later) session key" to "Enabled".

b

The system must be configured to prevent the storage of passwords and credentials.

RMF Control: IA-11
Severity: M
CCI: CCI-002038
Version: WN12-SO-000053
Vuln IDs: V-3376
Rule IDs: SV-52889r1_rule

This setting controls the storage of passwords and credentials for network authentication on the local system. Such credentials must not be stored on the local machine, as that may lead to account compromise.

Fix: F-45815r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network access: Do not allow storage of passwords and credentials for network authentication" to "Enabled".

b

The system must be configured to prevent anonymous users from having the same rights as the Everyone group.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-SO-000054
Vuln IDs: V-3377
Rule IDs: SV-52890r1_rule

Access by anonymous users must be restricted. If this setting is enabled, then anonymous users have the same rights and permissions as the built-in Everyone group. Anonymous users must not have these permissions or rights.

Fix: F-45816r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network access: Let everyone permissions apply to anonymous users" to "Disabled".

b

The system must be configured to use the Classic security model.

RMF Control: SC-4
Severity: M
CCI: CCI-001090
Version: WN12-SO-000060
Vuln IDs: V-3378
Rule IDs: SV-52891r1_rule

Windows includes two network-sharing security models - Classic and Guest only. With the Classic model, local accounts must be password protected; otherwise, anyone can use guest user accounts to access shared system resources.

Fix: F-45817r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network access: Sharing and security model for local accounts" to "Classic - local users authenticate as themselves".

c

The system must be configured to prevent the storage of the LAN Manager hash of passwords.

RMF Control: IA-5
Severity: H
CCI: CCI-000196
Version: WN12-SO-000065
Vuln IDs: V-3379
Rule IDs: SV-52892r2_rule

The LAN Manager hash uses a weak encryption algorithm and there are several tools available that use this hash to retrieve account passwords. This setting controls whether or not a LAN Manager hash of the password is stored in the SAM the next time the password is changed.

Fix: F-45818r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network security: Do not store LAN Manager hash value on next password change" to "Enabled".

b

The system must be configured to force users to log off when their allowed logon hours expire.

RMF Control: SC-10
Severity: M
CCI: CCI-001133
Version: WN12-SO-000066
Vuln IDs: V-3380
Rule IDs: SV-52893r1_rule

Limiting logon hours can help protect data by only allowing access during specified times. This setting controls whether or not users are forced to log off when their allowed logon hours expire. If logon hours are set for users, this must be enforced.

Fix: F-45819r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network security: Force logoff when logon hours expire" to "Enabled".

b

The system must be configured to the required LDAP client signing level.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-SO-000068
Vuln IDs: V-3381
Rule IDs: SV-52894r1_rule

This setting controls the signing requirements for LDAP clients. This setting must be set to Negotiate signing or Require signing, depending on the environment and type of LDAP server in use.

Fix: F-45820r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network security: LDAP client signing requirements" to "Negotiate signing" at a minimum.

b

The system must be configured to meet the minimum session security requirement for NTLM SSP-based clients.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-SO-000069
Vuln IDs: V-3382
Rule IDs: SV-52895r1_rule

Microsoft has implemented a variety of security support providers for use with RPC sessions. All of the options must be enabled to ensure the maximum security level.

Fix: F-45821r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network security: Minimum session security for NTLM SSP based (including secure RPC) clients" to "Require NTLMv2 session security" and "Require 128-bit encryption" (all options selected).

b

The system must be configured to use FIPS-compliant algorithms for encryption, hashing, and signing.

RMF Control: SC-13
Severity: M
CCI: CCI-002450
Version: WN12-SO-000074
Vuln IDs: V-3383
Rule IDs: SV-52896r2_rule

This setting ensures that the system uses algorithms that are FIPS-compliant for encryption, hashing, and signing. FIPS-compliant algorithms meet specific standards established by the U.S. Government and must be the algorithms used for all OS encryption functions.

Fix: F-45822r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "System cryptography: Use FIPS compliant algorithms for encryption, hashing, and signing" to "Enabled".

b

The system must be configured to require case insensitivity for non-Windows subsystems.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-SO-000075
Vuln IDs: V-3385
Rule IDs: SV-52897r1_rule

This setting controls the behavior of non-Windows subsystems when dealing with the case of arguments or commands. Case sensitivity could lead to the access of files or commands that must be restricted. To prevent this from happening, case insensitivity restrictions must be required.

Fix: F-45823r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "System objects: Require case insensitivity for non-Windows subsystems" to "Enabled".

b

Remote Desktop Services must limit users to one remote session.

RMF Control: AC-10
Severity: M
CCI: CCI-000054
Version: WN12-CC-000131
Vuln IDs: V-3449
Rule IDs: SV-52216r2_rule

Allowing multiple Remote Desktop Services sessions could consume resources. There is also potential to make a secondary connection to a system with compromised credentials.ECLO-1, ECLO-2

Fix: F-45235r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Connections -> "Restrict Remote Desktop Services users to a single Remote Desktop Services Session" to "Enabled".

b

Remote Desktop Services must always prompt a client for passwords upon connection.

RMF Control: IA-11
Severity: M
CCI: CCI-002038
Version: WN12-CC-000099
Vuln IDs: V-3453
Rule IDs: SV-52898r1_rule

This setting controls the ability of users to supply passwords automatically as part of their remote desktop connection. Disabling this setting would allow anyone to use the stored credentials in a connection item to connect to the terminal server.

Fix: F-45824r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Security -> "Always prompt for password upon connection" to "Enabled".

b

Remote Desktop Services must be configured with the client connection encryption set to the required level.

RMF Control: AC-17
Severity: M
CCI: CCI-000068
Version: WN12-CC-000100
Vuln IDs: V-3454
Rule IDs: SV-52899r2_rule

Remote connections must be encrypted to prevent interception of data or sensitive information. Selecting "High Level" will ensure encryption of Remote Desktop Services sessions in both directions.

Fix: F-45825r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Security -> "Set client connection encryption level" to "Enabled" and "High Level".

b

Remote Desktop Services must be configured to use session-specific temporary folders.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-CC-000104
Vuln IDs: V-3455
Rule IDs: SV-52900r1_rule

If a communal temporary folder is used for remote desktop sessions, it might be possible for users to access other users' temporary folders. If this setting is enabled, only one temporary folder is used for all remote desktop sessions. Per session temporary folders must be established.

Fix: F-45826r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Temporary Folders -> "Do not use temporary folders per session" to "Disabled".

b

Remote Desktop Services must delete temporary folders when a session is terminated.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-CC-000103
Vuln IDs: V-3456
Rule IDs: SV-52901r1_rule

Remote desktop session temporary folders must always be deleted after a session is over to prevent hard disk clutter and potential leakage of information. This setting controls the deletion of the temporary folders when the session is terminated.

Fix: F-45827r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Temporary Folders -> "Do not delete temp folder upon exit" to "Disabled".

b

Group Policies must be refreshed in the background if the user is logged on.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-CC-000029
Vuln IDs: V-3469
Rule IDs: SV-52906r1_rule

If this setting is enabled, then Group Policy settings are not refreshed while a user is currently logged on. This could lead to instances when a user does not have the latest changes to a policy applied and is therefore operating in an insecure context.

Fix: F-45832r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Group Policy -> "Turn off background refresh of Group Policy" to "Disabled".

b

The system must be configured to prevent unsolicited remote assistance offers.

RMF Control: SC-4
Severity: M
CCI: CCI-001090
Version: WN12-CC-000058
Vuln IDs: V-3470
Rule IDs: SV-52917r1_rule

Remote assistance allows another user to view or take control of the local session of a user. Unsolicited remote assistance is help that is offered by the remote user. This may allow unauthorized parties access to the resources on the computer.

Fix: F-45843r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Remote Assistance -> "Configure Offer Remote Assistance" to "Disabled".

b

The system must be configured to use Safe DLL Search Mode.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-SO-000045
Vuln IDs: V-3479
Rule IDs: SV-52920r1_rule

The default search behavior, when an application calls a function in a Dynamic Link Library (DLL), is to search the current directory, followed by the directories contained in the system's path environment variable. An unauthorized DLL, inserted into an application's working directory, could allow malicious code to be run on the system. Setting this policy value forces the system to search the %Systemroot% for the DLL before searching the current directory or the rest of the path.

Fix: F-45846r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "MSS: (SafeDllSearchMode) Enable Safe DLL search mode (recommended)" to "Enabled". (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

b

Windows Media Player must be configured to prevent automatic checking for updates.

RMF Control: CM-11
Severity: M
CCI: CCI-001812
Version: WN12-CC-000122
Vuln IDs: V-3480
Rule IDs: SV-53130r1_rule

Uncontrolled system updates can introduce issues to a system. The automatic check for updates performed by Windows Media Player must be disabled to ensure a constant platform and to prevent the introduction of unknown\untested software on the system.

Fix: F-46056r1_fix

If Windows Media Player is installed, configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Media Player -> "Prevent Automatic Updates" to "Enabled".

b

The system must be configured to meet the minimum session security requirement for NTLM SSP-based servers.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-SO-000070
Vuln IDs: V-3666
Rule IDs: SV-52922r1_rule

Microsoft has implemented a variety of security support providers for use with RPC sessions. All of the options must be enabled to ensure the maximum security level.

Fix: F-45848r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network security: Minimum session security for NTLM SSP based (including secure RPC) servers" to "Require NTLMv2 session security" and "Require 128-bit encryption" (all options selected).

a

The system must generate an audit event when the audit log reaches a percentage of full threshold.

RMF Control: AU-5
Severity: L
CCI: CCI-000139
Version: WN12-SO-000049
Vuln IDs: V-4108
Rule IDs: SV-52923r2_rule

When the audit log reaches a given percent full, an audit event is written to the security log. It is recorded as a successful audit event under the category of System. This option may be especially useful if the audit logs are set to be cleared manually.

Fix: F-45849r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "MSS: (WarningLevel) Percentage threshold for the security event log at which the system will generate a warning" to "90" or less. (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

a

The system must be configured to prevent IP source routing.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-SO-000038
Vuln IDs: V-4110
Rule IDs: SV-52924r1_rule

Configuring the system to disable IP source routing protects against spoofing.

Fix: F-45850r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "MSS: (DisableIPSourceRouting) IP source routing protection level (protects against packet spoofing)" to "Highest protection, source routing is completely disabled". (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

a

The system must be configured to prevent Internet Control Message Protocol (ICMP) redirects from overriding Open Shortest Path First (OSPF) generated routes.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-SO-000039
Vuln IDs: V-4111
Rule IDs: SV-52925r1_rule

Allowing ICMP redirect of routes can lead to traffic not being routed properly. When disabled, this forces ICMP to be routed via shortest path first.

Fix: F-45851r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "MSS: (EnableICMPRedirect) Allow ICMP redirects to override OSPF generated routes" to "Disabled". (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

a

The system must be configured to disable the Internet Router Discovery Protocol (IRDP).

RMF Control: SC-5
Severity: L
CCI: CCI-002385
Version: WN12-SO-000044
Vuln IDs: V-4112
Rule IDs: SV-52926r1_rule

The Internet Router Discovery Protocol (IRDP) is used to detect and configure default gateway addresses on the computer. If a router is impersonated on a network, traffic could be routed through the compromised system.

Fix: F-45852r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "MSS: (PerformRouterDiscovery) Allow IRDP to detect and configure Default Gateway addresses (could lead to DoS)" to "Disabled". (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

a

The system must be configured to limit how often keep-alive packets are sent.

RMF Control: SC-5
Severity: L
CCI: CCI-002385
Version: WN12-SO-000041
Vuln IDs: V-4113
Rule IDs: SV-52927r1_rule

This setting controls how often TCP sends a keep-alive packet in attempting to verify that an idle connection is still intact. A higher value could allow an attacker to cause a denial of service with numerous connections.

Fix: F-45853r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "MSS: (KeepAliveTime) How often keep-alive packets are sent in milliseconds" to "300000 or 5 minutes (recommended)" or less. (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

a

The system must be configured to ignore NetBIOS name release requests except from WINS servers.

RMF Control: SC-5
Severity: L
CCI: CCI-002385
Version: WN12-SO-000043
Vuln IDs: V-4116
Rule IDs: SV-52928r2_rule

Configuring the system to ignore name release requests, except from WINS servers, prevents a denial of service (DoS) attack. The DoS consists of sending a NetBIOS name release request to the server for each entry in the server's cache, causing a response delay in the normal operation of the servers WINS resolution capability.

Fix: F-45854r3_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "MSS: (NoNameReleaseOnDemand) Allow the computer to ignore NetBIOS name release requests except from WINS servers" to "Enabled". (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

b

Domain controllers must require LDAP access signing.

RMF Control: SC-8
Severity: M
CCI: CCI-002418
Version: WN12-SO-000090-DC
Vuln IDs: V-4407
Rule IDs: SV-51140r3_rule

Unsigned network traffic is susceptible to man in the middle attacks where an intruder captures packets between the server and the client and modifies them before forwarding them to the client. In the case of an LDAP server, this means that an attacker could cause a client to make decisions based on false records from the LDAP directory. You can lower the risk of an attacker pulling this off in a corporate network by implementing strong physical security measures to protect the network infrastructure. Furthermore, implementing Internet Protocol security (IPSec) authentication header mode (AH), which performs mutual authentication and packet integrity for Internet Protocol (IP) traffic, can make all types of man in the middle attacks extremely difficult.

Fix: F-44297r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Domain controller: LDAP server signing requirements" to "Require signing".

a

Domain controllers must be configured to allow reset of machine account passwords.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-SO-000091-DC
Vuln IDs: V-4408
Rule IDs: SV-51141r2_rule

Enabling this setting on all domain controllers in a domain prevents domain members from changing their computer account passwords. If these passwords are weak or compromised, the inability to change them may leave these computers vulnerable.ECSC-1

Fix: F-44298r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Domain controller: Refuse machine account password changes" to "Disabled".

a

The system must limit how many times unacknowledged TCP data is retransmitted.

RMF Control: SC-5
Severity: L
CCI: CCI-002385
Version: WN12-SO-000048
Vuln IDs: V-4438
Rule IDs: SV-52929r2_rule

In a SYN flood attack, the attacker sends a continuous stream of SYN packets to a server, and the server leaves the half-open connections open until it is overwhelmed and is no longer able to respond to legitimate requests.

Fix: F-45855r3_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "MSS: (TcpMaxDataRetransmissions) How many times unacknowledged data is retransmitted (3 recommended, 5 is default)" to "3" or less. (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

a

The system must be configured to have password protection take effect within a limited time frame when the screen saver becomes active.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-SO-000046
Vuln IDs: V-4442
Rule IDs: SV-52930r1_rule

Allowing more than several seconds makes the computer vulnerable to a potential attack from someone walking up to the console to attempt to log on to the system before the lock takes effect.

Fix: F-45856r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "MSS: (ScreenSaverGracePeriod) The time in seconds before the screen saver grace period expires (0 recommended)" to "5" or less. (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

c

Unauthorized remotely accessible registry paths and sub-paths must not be configured.

RMF Control: SC-4
Severity: H
CCI: CCI-001090
Version: WN12-SO-000057
Vuln IDs: V-4443
Rule IDs: SV-52931r2_rule

The registry is integral to the function, security, and stability of the Windows system. Some processes may require remote access to the registry. This setting controls which registry paths and sub-paths are accessible from a remote computer. These registry paths must be limited, as they could give unauthorized individuals access to the registry.

Fix: F-45857r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network access: Remotely accessible registry paths and sub-paths" with the following entries: Software\Microsoft\OLAP Server Software\Microsoft\Windows NT\CurrentVersion\Perflib Software\Microsoft\Windows NT\CurrentVersion\Print Software\Microsoft\Windows NT\CurrentVersion\Windows System\CurrentControlSet\Control\ContentIndex System\CurrentControlSet\Control\Print\Printers System\CurrentControlSet\Control\Terminal Server System\CurrentControlSet\Control\Terminal Server\UserConfig System\CurrentControlSet\Control\Terminal Server\DefaultUserConfiguration System\CurrentControlSet\Services\Eventlog System\CurrentControlSet\Services\Sysmonlog

a

Optional Subsystems must not be permitted to operate on the system.

RMF Control: CM-7
Severity: L
CCI: CCI-000381
Version: WN12-SO-000088
Vuln IDs: V-4445
Rule IDs: SV-52219r2_rule

The POSIX subsystem is an Institute of Electrical and Electronic Engineers (IEEE) standard that defines a set of operating system services. The POSIX Subsystem is required if the server supports applications that use that subsystem. The subsystem introduces a security risk relating to processes that can potentially persist across logins. That is, if a user starts a process and then logs out, there is a potential that the next user who logs in to the system could access the previous users process. This is dangerous because the process started by the first user may retain that users system privileges, and anything the second user does with that process will be performed with the privileges of the first user.HKECSC-1

Fix: F-45238r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "System settings: Optional subsystems" to "Blank" (Configured with no entries).

b

The Remote Desktop Session Host must require secure RPC communications.

RMF Control: AC-17
Severity: M
CCI: CCI-001453
Version: WN12-CC-000130
Vuln IDs: V-4447
Rule IDs: SV-52932r2_rule

Allowing unsecure RPC communication exposes the system to man-in-the-middle attacks and data disclosure attacks. A man-in-the-middle attack occurs when an intruder captures packets between a client and server and modifies them before allowing the packets to be exchanged. Usually the attacker will modify the information in the packets in an attempt to cause either the client or server to reveal sensitive information.

Fix: F-45858r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Security -> "Require secure RPC communication" to "Enabled".

b

Group Policy objects must be reprocessed even if they have not changed.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-CC-000028
Vuln IDs: V-4448
Rule IDs: SV-52933r1_rule

Enabling this setting and then selecting the "Process even if the Group Policy objects have not changed" option ensures that the policies will be reprocessed even if none have been changed. This way, any unauthorized changes are forced to match the domain-based group policy settings again.

Fix: F-45859r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Group Policy -> "Configure registry policy processing" to "Enabled" and select the option "Process even if the Group Policy objects have not changed".

b

Outgoing secure channel traffic must be encrypted or signed.

RMF Control: SC-8
Severity: M
CCI: CCI-002418
Version: WN12-SO-000012
Vuln IDs: V-6831
Rule IDs: SV-52934r2_rule

Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but not all information is encrypted. If this policy is enabled, outgoing secure channel traffic will be encrypted and signed.

Fix: F-45860r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Domain member: Digitally encrypt or sign secure channel data (always)" to "Enabled".

b

The Windows SMB client must be configured to always perform SMB packet signing.

RMF Control: SC-8
Severity: M
CCI: CCI-002418
Version: WN12-SO-000028
Vuln IDs: V-6832
Rule IDs: SV-52935r2_rule

The server message block (SMB) protocol provides the basis for many network operations. Digitally signed SMB packets aid in preventing man-in-the-middle attacks. If this policy is enabled, the SMB client will only communicate with an SMB server that performs SMB packet signing.

Fix: F-45861r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Microsoft network client: Digitally sign communications (always)" to "Enabled".

b

The Windows SMB server must be configured to always perform SMB packet signing.

RMF Control: SC-8
Severity: M
CCI: CCI-002418
Version: WN12-SO-000032
Vuln IDs: V-6833
Rule IDs: SV-52936r2_rule

The server message block (SMB) protocol provides the basis for many network operations. Digitally signed SMB packets aid in preventing man-in-the-middle attacks. If this policy is enabled, the SMB server will only communicate with an SMB client that performs SMB packet signing.

Fix: F-45862r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Microsoft network server: Digitally sign communications (always)" to "Enabled".

c

Anonymous access to Named Pipes and Shares must be restricted.

RMF Control: SC-4
Severity: H
CCI: CCI-001090
Version: WN12-SO-000058
Vuln IDs: V-6834
Rule IDs: SV-52937r1_rule

Allowing anonymous access to named pipes or shares provides the potential for unauthorized system access. This setting restricts access to those defined in "Network access: Named Pipes that can be accessed anonymously" and "Network access: Shares that can be accessed anonymously", both of which must be blank under other requirements.

Fix: F-45863r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network access: Restrict anonymous access to Named Pipes and Shares" to "Enabled".

b

Passwords must, at a minimum, be 14 characters.

RMF Control: IA-5
Severity: M
CCI: CCI-000205
Version: WN12-AC-000007
Vuln IDs: V-6836
Rule IDs: SV-52938r2_rule

Information systems not protected with strong password schemes (including passwords of minimum length) provide the opportunity for anyone to crack the password, thus gaining access to the system and compromising the device, information, or the local network.

Fix: F-45864r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Account Policies -> Password Policy -> "Minimum password length" to "14" characters.

c

Active Directory data files must have proper access control permissions.

RMF Control: AC-6
Severity: H
CCI: CCI-002235
Version: WN12-AD-000001-DC
Vuln IDs: V-8316
Rule IDs: SV-51175r3_rule

Improper access permissions for directory data related files could allow unauthorized users to read, modify, or delete directory data or audit trails.

Fix: F-80453r1_fix

Ensure the permissions on NTDS database and log files are at least as restrictive as the following: NT AUTHORITY\SYSTEM:(I)(F) BUILTIN\Administrators:(I)(F) (I) - permission inherited from parent container (F) - full access

a

The system must be configured to prevent the display of the last username on the logon screen.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-SO-000018
Vuln IDs: V-11806
Rule IDs: SV-52941r1_rule

Displaying the username of the last logged on user provides half of the userid/password equation that an unauthorized person would need to gain access. The username of the last user to log on to a system must not be displayed.

Fix: F-45867r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Interactive logon: Do not display last user name" to "Enabled".

b

Auditing the Access of Global System Objects must be turned off.

RMF Control: SC-5
Severity: M
CCI: CCI-001095
Version: WN12-SO-000007
Vuln IDs: V-14228
Rule IDs: SV-53129r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. This setting prevents the system from setting up a default system access control list for certain system objects, which could create a very large number of security events, filling the security log in Windows and making it difficult to identify actual issues.

Fix: F-46055r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Audit: Audit the access of global system objects" to "Disabled".

b

Auditing of Backup and Restore Privileges must be turned off.

RMF Control: SC-5
Severity: M
CCI: CCI-001095
Version: WN12-SO-000008
Vuln IDs: V-14229
Rule IDs: SV-52943r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. This setting prevents the system from generating audit events for every file backed up or restored, which could fill the security log in Windows, making it difficult to identify actual issues.

Fix: F-45869r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Audit: Audit the use of Backup and Restore privilege" to "Disabled".

b

Audit policy using subcategories must be enabled.

RMF Control: AU-12
Severity: M
CCI: CCI-000169
Version: WN12-SO-000009
Vuln IDs: V-14230
Rule IDs: SV-52944r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. This setting allows administrators to enable more precise auditing capabilities.

Fix: F-45870r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" to "Enabled".

a

IPSec Exemptions must be limited.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-SO-000042
Vuln IDs: V-14232
Rule IDs: SV-52945r1_rule

IPSec exemption filters allow specific traffic that may be needed by the system for such things as Kerberos authentication. This setting configures Windows for specific IPSec exemptions.

Fix: F-45871r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "MSS: (NoDefaultExempt) Configure IPSec exemptions for various types of network traffic" to "Only ISAKMP is exempt (recommended for Windows Server 2003)". (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

b

User Account Control approval mode for the built-in Administrator must be enabled.

RMF Control: IA-11
Severity: M
CCI: CCI-002038
Version: WN12-SO-000077
Vuln IDs: V-14234
Rule IDs: SV-52946r1_rule

User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures the built-in Administrator account so that it runs in Admin Approval Mode.

Fix: F-45872r2_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Admin Approval Mode for the Built-in Administrator account" to "Enabled".

b

User Account Control must, at minimum, prompt administrators for consent.

RMF Control: SC-3
Severity: M
CCI: CCI-001084
Version: WN12-SO-000078
Vuln IDs: V-14235
Rule IDs: SV-52947r1_rule

User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures the elevation requirements for logged on administrators to complete a task that requires raised privileges.

Fix: F-45873r2_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Behavior of the elevation prompt for administrators in Admin Approval Mode" to "Prompt for consent". More secure options for this setting would also be acceptable (e.g., Prompt for credentials, Prompt for consent (or credentials) on the secure desktop).

b

User Account Control must automatically deny standard user requests for elevation.

RMF Control: IA-11
Severity: M
CCI: CCI-002038
Version: WN12-SO-000079
Vuln IDs: V-14236
Rule IDs: SV-52948r1_rule

User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting controls the behavior of elevation when requested by a standard user account.

Fix: F-45874r2_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Behavior of the elevation prompt for standard users" to "Automatically deny elevation requests".

b

User Account Control must be configured to detect application installations and prompt for elevation.

RMF Control: SC-3
Severity: M
CCI: CCI-001084
Version: WN12-SO-000080
Vuln IDs: V-14237
Rule IDs: SV-52949r1_rule

User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting requires Windows to respond to application installation requests by prompting for credentials.

Fix: F-45875r2_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Detect application installations and prompt for elevation" to "Enabled".

b

User Account Control must only elevate UIAccess applications that are installed in secure locations.

RMF Control: SC-3
Severity: M
CCI: CCI-001084
Version: WN12-SO-000082
Vuln IDs: V-14239
Rule IDs: SV-52950r1_rule

User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures Windows to only allow applications installed in a secure location on the file system, such as the Program Files or the Windows\System32 folders, to run with elevated privileges.

Fix: F-45876r2_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Only elevate UIAccess applications that are installed in secure locations" to "Enabled".

b

User Account Control must run all administrators in Admin Approval Mode, enabling UAC.

RMF Control: IA-11
Severity: M
CCI: CCI-002038
Version: WN12-SO-000083
Vuln IDs: V-14240
Rule IDs: SV-52951r1_rule

User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting enables UAC.

Fix: F-45877r2_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Run all administrators in Admin Approval Mode" to "Enabled".

b

User Account Control must switch to the secure desktop when prompting for elevation.

RMF Control: SC-3
Severity: M
CCI: CCI-001084
Version: WN12-SO-000084
Vuln IDs: V-14241
Rule IDs: SV-52952r1_rule

User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting ensures that the elevation prompt is only used in secure desktop mode.

Fix: F-45878r2_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Switch to the secure desktop when prompting for elevation" to "Enabled".

b

User Account Control must virtualize file and registry write failures to per-user locations.

RMF Control: SC-3
Severity: M
CCI: CCI-001084
Version: WN12-SO-000085
Vuln IDs: V-14242
Rule IDs: SV-52953r1_rule

User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures non-UAC-compliant applications to run in virtualized file and registry entries in per-user locations, allowing them to run.

Fix: F-45879r2_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Virtualize file and registry write failures to per-user locations" to "Enabled".

b

Administrator accounts must not be enumerated during elevation.

RMF Control: SC-3
Severity: M
CCI: CCI-001084
Version: WN12-CC-000077
Vuln IDs: V-14243
Rule IDs: SV-52955r2_rule

Enumeration of administrator accounts when elevating can provide part of the logon information to an unauthorized user. This setting configures the system to always require users to enter in a username and password to elevate a running application.

Fix: F-45881r2_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Credential User Interface >> "Enumerate administrator accounts on elevation" to "Disabled".

b

Passwords must not be saved in the Remote Desktop Client.

RMF Control: IA-11
Severity: M
CCI: CCI-002038
Version: WN12-CC-000096
Vuln IDs: V-14247
Rule IDs: SV-52958r1_rule

Saving passwords in the Remote Desktop Client could allow an unauthorized user to establish a remote desktop session to another system. The system must be configured to prevent users from saving passwords in the Remote Desktop Client.

Fix: F-45884r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Connection Client -> "Do not allow passwords to be saved" to "Enabled".

b

Local drives must be prevented from sharing with Remote Desktop Session Hosts. (Remote Desktop Services Role).

RMF Control: SC-4
Severity: M
CCI: CCI-001090
Version: WN12-CC-000098
Vuln IDs: V-14249
Rule IDs: SV-52959r1_rule

Preventing users from sharing the local drives on their client computers to Remote Session Hosts that they access helps reduce possible exposure of sensitive data.

Fix: F-45885r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Device and Resource Redirection -> "Do not allow drive redirection" to "Enabled".

b

Printing over HTTP must be prevented.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000039
Vuln IDs: V-14259
Rule IDs: SV-52997r1_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents the client computer from printing over HTTP, which allows the computer to print to printers on the intranet as well as the Internet.

Fix: F-45924r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication settings -> "Turn off printing over HTTP" to "Enabled".

b

Downloading print driver packages over HTTP must be prevented.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000032
Vuln IDs: V-14260
Rule IDs: SV-52998r1_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents the computer from downloading print driver packages over HTTP.

Fix: F-45925r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication settings -> "Turn off downloading of print drivers over HTTP" to "Enabled".

b

Windows must be prevented from using Windows Update to search for drivers.

RMF Control: CM-11
Severity: M
CCI: CCI-001812
Version: WN12-CC-000047
Vuln IDs: V-14261
Rule IDs: SV-53000r1_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents Windows from searching Windows Update for device drivers when no local drivers for a device are present.

Fix: F-45927r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication settings -> "Turn off Windows Update device driver searching" to "Enabled".

b

The HBSS McAfee Agent must be installed.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-GE-000019
Vuln IDs: V-15505
Rule IDs: SV-53010r3_rule

The McAfee Agent is the client side distributed component of McAfee ePolicy Orchestrator (McAfee ePO) which provides a secure communication channel between the ePO server and managed point products.

Fix: F-45937r1_fix

Deploy the McAfee Agent as detailed in accordance with the DoD HBSS STIG.

b

Windows Peer-to-Peer networking services must be turned off.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000003
Vuln IDs: V-15666
Rule IDs: SV-53012r1_rule

Peer-to-Peer applications can allow unauthorized access to a system and exposure of sensitive data. This setting will turn off the Microsoft Peer-to-Peer Networking Service.

Fix: F-45939r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Microsoft Peer-to-Peer Networking Services -> "Turn off Microsoft Peer-to-Peer Networking Services" to "Enabled".

b

Network Bridges must be prohibited in Windows.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000004
Vuln IDs: V-15667
Rule IDs: SV-53014r2_rule

A Network Bridge can connect two or more network segments, allowing unauthorized access or exposure of sensitive data. This setting prevents a Network Bridge from being installed and configured.

Fix: F-45941r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Network Connections -> "Prohibit installation and configuration of Network Bridge on your DNS domain network" to "Enabled".

a

Event Viewer Events.asp links must be turned off.

RMF Control: CM-7
Severity: L
CCI: CCI-000381
Version: WN12-CC-000033
Vuln IDs: V-15672
Rule IDs: SV-53017r1_rule

Viewing events is a function of administrators, who must not access the internet with privileged accounts. This setting will disable Events.asp hyperlinks in Event Viewer to prevent links to the internet from within events.

Fix: F-45944r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication settings -> "Turn off Event Viewer "Events.asp" links" to "Enabled".

b

The Internet File Association service must be turned off.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000038
Vuln IDs: V-15674
Rule IDs: SV-53021r1_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents unhandled file associations from using the Microsoft Web service to find an application.

Fix: F-45947r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication settings -> "Turn off Internet File Association service" to "Enabled".

b

Attachments must be prevented from being downloaded from RSS feeds.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-CC-000105
Vuln IDs: V-15682
Rule IDs: SV-53040r1_rule

Attachments from RSS feeds may not be secure. This setting will prevent attachments from being downloaded from RSS feeds.

Fix: F-45966r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> RSS Feeds -> "Prevent downloading of enclosures" to "Enabled".

b

File Explorer shell protocol must run in protected mode.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-CC-000091
Vuln IDs: V-15683
Rule IDs: SV-53045r1_rule

The shell protocol will limit the set of folders applications can open when run in protected mode. Restricting files an application can open to a limited set of folders increases the security of Windows.

Fix: F-45971r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> File Explorer -> "Turn off shell protocol protected mode" to "Disabled".

b

Users must be notified if a web-based program attempts to install software.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-CC-000117
Vuln IDs: V-15684
Rule IDs: SV-53056r2_rule

Users must be aware of attempted program installations. This setting ensures users are notified if a web-based program attempts to install software.

Fix: F-45982r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Installer -> "Prevent Internet Explorer security prompt for Windows Installer scripts" to "Disabled".

b

Users must be prevented from changing installation options.

RMF Control: CM-11
Severity: M
CCI: CCI-001812
Version: WN12-CC-000115
Vuln IDs: V-15685
Rule IDs: SV-53061r1_rule

Installation options for applications are typically controlled by administrators. This setting prevents users from changing installation options that may bypass security features.

Fix: F-45986r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Installer -> "Allow user control over installs" to "Disabled".

a

Nonadministrators must be prevented from applying vendor-signed updates.

RMF Control: CM-11
Severity: L
CCI: CCI-001812
Version: WN12-CC-000118
Vuln IDs: V-15686
Rule IDs: SV-53065r1_rule

Uncontrolled system updates can introduce issues to a system. This setting will prevent users from applying vendor-signed updates (though they may be from a trusted source).

Fix: F-45991r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Installer -> "Prohibit non-administrators from applying vendor signed updates" to "Enabled".

a

Users must not be presented with Privacy and Installation options on first use of Windows Media Player.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-CC-000121
Vuln IDs: V-15687
Rule IDs: SV-53069r1_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents users from being presented with Privacy and Installation options on first use of Windows Media Player, which could enable some communication with the vendor.

Fix: F-45995r1_fix

If Windows Media Player is installed, configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Media Player -> "Do Not Show First Use Dialog Boxes" to "Enabled".

b

The Mapper I/O network protocol (LLTDIO) driver must be disabled.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000001
Vuln IDs: V-15696
Rule IDs: SV-53072r1_rule

The Mapper I/O network protocol (LLTDIO) driver allows the discovery of the connected network and allows various options to be enabled. Disabling this helps protect the system from potentially discovering and connecting to unauthorized devices.

Fix: F-45998r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Link-Layer Topology Discovery -> "Turn on Mapper I/O (LLTDIO) driver" to "Disabled".

b

The Responder network protocol driver must be disabled.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000002
Vuln IDs: V-15697
Rule IDs: SV-53081r1_rule

The Responder network protocol driver allows a computer to be discovered and located on a network. Disabling this helps protect the system from potentially being discovered and connected to by unauthorized devices.

Fix: F-46007r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Link-Layer Topology Discovery -> "Turn on Responder (RSPNDR) driver" to "Disabled".

b

The configuration of wireless devices using Windows Connect Now must be disabled.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000012
Vuln IDs: V-15698
Rule IDs: SV-53085r1_rule

Windows Connect Now allows the discovery and configuration of devices over wireless. Wireless devices must be managed. If a rogue device is connected to a system, there is potential for sensitive information to be compromised.

Fix: F-46011r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Windows Connect Now -> "Configuration of wireless settings using Windows Connect Now" to "Disabled".

b

The Windows Connect Now wizards must be disabled.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000013
Vuln IDs: V-15699
Rule IDs: SV-53089r1_rule

Windows Connect Now provides wizards for tasks such as "Set up a wireless router or access point" and must not be available to users. Functions such as these may allow unauthorized connections to a system and the potential for sensitive information to be compromised.

Fix: F-46015r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Windows Connect Now -> "Prohibit access of the Windows Connect Now wizards" to "Enabled".

b

Remote access to the Plug and Play interface must be disabled for device installation.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000019
Vuln IDs: V-15700
Rule IDs: SV-53094r1_rule

Remote access to the Plug and Play interface could potentially allow connections by unauthorized devices. This setting configures remote access to the Plug and Play interface and must be disabled.

Fix: F-46020r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Device Installation -> "Allow remote access to the Plug and Play interface" to "Disabled".

a

A system restore point must be created when a new device driver is installed.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-CC-000021
Vuln IDs: V-15701
Rule IDs: SV-53099r1_rule

A system restore point allows a rollback if an issue is encountered when a new device driver is installed.

Fix: F-46025r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Device Installation -> "Prevent creation of a system restore point during device activity that would normally prompt creation of a restore point" to "Disabled".

a

An Error Report must not be sent when a generic device driver is installed.

RMF Control: CM-7
Severity: L
CCI: CCI-000381
Version: WN12-CC-000020
Vuln IDs: V-15702
Rule IDs: SV-53105r1_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents an error report from being sent when a generic device driver is installed.

Fix: F-46030r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Device Installation -> "Do not send a Windows error report when a generic driver is installed on a device" to "Enabled".

a

Users must not be prompted to search Windows Update for device drivers.

RMF Control: CM-11
Severity: L
CCI: CCI-001812
Version: WN12-CC-000026
Vuln IDs: V-15703
Rule IDs: SV-53115r1_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents users from being prompted to search Windows Update for device drivers.

Fix: F-46041r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Driver Installation -> "Turn off Windows Update device driver search prompt" to "Enabled".

a

Errors in handwriting recognition on tablet PCs must not be reported to Microsoft.

RMF Control: CM-7
Severity: L
CCI: CCI-000381
Version: WN12-CC-000035
Vuln IDs: V-15704
Rule IDs: SV-53116r1_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents errors in handwriting recognition on tablet PCs from being reported to Microsoft.

Fix: F-46042r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication settings -> "Turn off handwriting recognition error reporting" to "Enabled".

b

Users must be prompted to authenticate on resume from sleep (on battery).

RMF Control: IA-11
Severity: M
CCI: CCI-002038
Version: WN12-CC-000054
Vuln IDs: V-15705
Rule IDs: SV-53131r1_rule

Authentication must always be required when accessing a system. This setting ensures the user is prompted for a password on resume from sleep (on battery).

Fix: F-46057r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Power Management -> Sleep Settings -> "Require a password when a computer wakes (on battery)" to "Enabled".

b

The user must be prompted to authenticate on resume from sleep (plugged in).

RMF Control: IA-11
Severity: M
CCI: CCI-002038
Version: WN12-CC-000055
Vuln IDs: V-15706
Rule IDs: SV-53132r1_rule

Authentication must always be required when accessing a system. This setting ensures the user is prompted for a password on resume from sleep (plugged in).

Fix: F-46058r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Power Management -> Sleep Settings -> "Require a password when a computer wakes (plugged in)" to "Enabled".

a

Remote Assistance log files must be generated.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-CC-000062
Vuln IDs: V-15707
Rule IDs: SV-53133r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. This setting will turn on session logging for Remote Assistance connections.

Fix: F-46059r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Remote Assistance -> "Turn on session logging" to "Enabled".

b

Microsoft Active Protection Service membership must be disabled.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000111
Vuln IDs: V-15713
Rule IDs: SV-53134r2_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this feature will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting disables Microsoft Active Protection Service membership and reporting.

Fix: F-62313r2_fix

Windows 2012 R2: Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Defender -> MAPS -> "Join Microsoft MAPS" to "Disabled". Windows 2012: Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Defender -> "Configure Microsoft Active Protection Service Reporting" to "Disabled".

a

Turning off File Explorer heap termination on corruption must be disabled.

RMF Control: SC-5
Severity: L
CCI: CCI-002385
Version: WN12-CC-000090
Vuln IDs: V-15718
Rule IDs: SV-53137r1_rule

Legacy plug-in applications may continue to function when a File Explorer session has become corrupt. Disabling this feature will prevent this.

Fix: F-46063r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> File Explorer -> "Turn off heap termination on corruption" to "Disabled".

b

Windows Media Digital Rights Management (DRM) must be prevented from accessing the Internet.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000120
Vuln IDs: V-15722
Rule IDs: SV-53139r1_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This check verifies that Windows Media DRM will be prevented from accessing the Internet.

Fix: F-46065r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Media Digital Rights Management -> "Prevent Windows Media DRM Internet Access" to "Enabled".

b

Software certificate installation files must be removed from Windows 2012/2012 R2.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-GE-000020
Vuln IDs: V-15823
Rule IDs: SV-53141r3_rule

Use of software certificates and their accompanying installation files for end users to access resources is less secure than the use of hardware-based certificates.

Fix: F-85467r1_fix

Remove any certificate installation files (*.p12 and *.pfx) found on a system. This does not apply to server-based applications that have a requirement for certificate files or non-certificate installation files with the same extension.

b

UIAccess applications must not be allowed to prompt for elevation without using the secure desktop.

RMF Control: SC-3
Severity: M
CCI: CCI-001084
Version: WN12-SO-000086
Vuln IDs: V-15991
Rule IDs: SV-52223r2_rule

User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting prevents User Interface Accessibility programs from disabling the secure desktop for elevation prompts.ECCD-1, ECCD-2

Fix: F-45241r1_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Allow UIAccess applications to prompt for elevation without using the secure desktop" to "Disabled".

b

Users must be prevented from mapping local COM ports and redirecting data from the Remote Desktop Session Host to local COM ports. (Remote Desktop Services Role).

RMF Control: AC-17
Severity: M
CCI: CCI-002314
Version: WN12-CC-000132
Vuln IDs: V-15997
Rule IDs: SV-52224r2_rule

Preventing the redirection of Remote Desktop session data to a client computer's COM ports helps reduce possible exposure of sensitive data.ECSC-1

Fix: F-45242r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Device and Resource Redirection -> "Do not allow COM port redirection" to "Enabled".

b

Users must be prevented from mapping local LPT ports and redirecting data from the Remote Desktop Session Host to local LPT ports. (Remote Desktop Services Role).

RMF Control: AC-17
Severity: M
CCI: CCI-002314
Version: WN12-CC-000133
Vuln IDs: V-15998
Rule IDs: SV-52226r2_rule

Preventing the redirection of Remote Desktop session data to a client computer's LPT ports helps reduce possible exposure of sensitive data.ECSC-1

Fix: F-45244r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Device and Resource Redirection -> "Do not allow LPT port redirection" to "Enabled".

b

Users must be prevented from redirecting Plug and Play devices to the Remote Desktop Session Host. (Remote Desktop Services Role).

RMF Control: AC-17
Severity: M
CCI: CCI-002314
Version: WN12-CC-000135
Vuln IDs: V-15999
Rule IDs: SV-52229r2_rule

Preventing the redirection of Plug and Play devices in Remote Desktop sessions helps reduce possible exposure of sensitive data.ECSC-1

Fix: F-45246r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Device and Resource Redirection -> "Do not allow supported Plug and Play device redirection" to "Enabled".

b

The system must be configured to ensure smart card devices can be redirected to the Remote Desktop session. (Remote Desktop Services Role).

RMF Control: AC-17
Severity: M
CCI: CCI-002314
Version: WN12-CC-000134
Vuln IDs: V-16000
Rule IDs: SV-52230r2_rule

Enabling the redirection of smart card devices allows their use within Remote Desktop sessions.ECSC-1

Fix: F-45247r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Device and Resource Redirection -> "Do not allow smart card device redirection" to "Disabled".

b

Windows must elevate all applications in User Account Control, not just signed ones.

RMF Control: SC-3
Severity: M
CCI: CCI-001084
Version: WN12-SO-000081
Vuln IDs: V-16008
Rule IDs: SV-53142r1_rule

User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures whether Windows elevates all applications, or only signed ones.

Fix: F-46068r2_fix

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Only elevate executables that are signed and validated" to "Disabled".

b

The Windows Customer Experience Improvement Program must be disabled.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000045
Vuln IDs: V-16020
Rule IDs: SV-53143r1_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting ensures the Windows Customer Experience Improvement Program is disabled so information is not passed to the vendor.

Fix: F-46069r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Internet Communication Management -> Internet Communication Settings -> "Turn off Windows Customer Experience Improvement Program" to "Enabled".

c

The Debug programs user right must only be assigned to the Administrators group.

RMF Control: AC-6
Severity: H
CCI: CCI-002235
Version: WN12-UR-000016
Vuln IDs: V-18010
Rule IDs: SV-52115r3_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Debug programs" user right can attach a debugger to any process or to the kernel, providing complete access to sensitive and critical operating system components. This right is given to Administrators in the default configuration.

Fix: F-45140r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Debug programs" to only include the following accounts or groups: Administrators

b

The service principal name (SPN) target name validation level must be turned off.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-SO-000035
Vuln IDs: V-21950
Rule IDs: SV-53175r1_rule

If a service principle name (SPN) is provided by the client, it is validated against the server's list of SPNs. Implementation may disrupt file and print sharing capabilities.

Fix: F-46101r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Microsoft network server: Server SPN target name validation level" to "Off".

b

Services using Local System that use Negotiate when reverting to NTLM authentication must use the computer identity vs. authenticating anonymously.

RMF Control: IA-3
Severity: M
CCI: CCI-000778
Version: WN12-SO-000061
Vuln IDs: V-21951
Rule IDs: SV-53176r1_rule

Services using Local System that use Negotiate when reverting to NTLM authentication may gain unauthorized access if allowed to authenticate anonymously vs. using the computer identity.

Fix: F-46102r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network security: Allow Local System to use computer identity for NTLM" to "Enabled".

b

NTLM must be prevented from falling back to a Null session.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-SO-000062
Vuln IDs: V-21952
Rule IDs: SV-53177r1_rule

NTLM sessions that are allowed to fall back to Null (unauthenticated) sessions may gain unauthorized access.

Fix: F-46103r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network security: Allow LocalSystem NULL session fallback" to "Disabled".

b

PKU2U authentication using online identities must be prevented.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-SO-000063
Vuln IDs: V-21953
Rule IDs: SV-53178r1_rule

PKU2U is a peer-to-peer authentication protocol. This setting prevents online identities from authenticating to domain-joined systems. Authentication will be centrally managed with Windows user accounts.

Fix: F-46104r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network security: Allow PKU2U authentication requests to this computer to use online identities" to "Disabled".

b

Kerberos encryption types must be configured to prevent the use of DES and RC4 encryption suites.

RMF Control: IA-7
Severity: M
CCI: CCI-000803
Version: WN12-SO-000064
Vuln IDs: V-21954
Rule IDs: SV-53179r4_rule

Certain encryption types are no longer considered secure. The DES and RC4 encryption suites must not be used for Kerberos encryption. Note: Removing the previously allowed RC4_HMAC_MD5 encryption suite may have operational impacts and must be thoroughly tested for the environment before changing. This includes but is not limited to parent\child trusts where RC4 is still enabled; selecting "The other domain supports Kerberos AES Encryption" may be required on the domain trusts to allow client communication across the trust relationship.

Fix: F-97093r3_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network security: Configure encryption types allowed for Kerberos" to "Enabled" with only the following selected: AES128_HMAC_SHA1 AES256_HMAC_SHA1 Future encryption types Note: Removing the previously allowed RC4_HMAC_MD5 encryption suite may have operational impacts and must be thoroughly tested for the environment before changing. This includes but is not limited to parent\child trusts where RC4 is still enabled; selecting "The other domain supports Kerberos AES Encryption" may be required on the domain trusts to allow client communication across the trust relationship.

a

IPv6 source routing must be configured to the highest protection level.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-SO-000037
Vuln IDs: V-21955
Rule IDs: SV-53180r2_rule

Configuring the system to disable IPv6 source routing protects against spoofing.

Fix: F-46106r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "MSS: (DisableIPSourceRouting IPv6) IP source routing protection level (protects against packet spoofing)" to "Highest protection, source routing is completely disabled". (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

a

IPv6 TCP data retransmissions must be configured to prevent resources from becoming exhausted.

RMF Control: SC-5
Severity: L
CCI: CCI-002385
Version: WN12-SO-000047
Vuln IDs: V-21956
Rule IDs: SV-53181r2_rule

Configuring Windows to limit the number of times that IPv6 TCP retransmits unacknowledged data segments before aborting the attempt helps prevent resources from becoming exhausted.

Fix: F-46107r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "MSS: (TcpMaxDataRetransmissions IPv6) How many times unacknowledged data is retransmitted (3 recommended, 5 is default)" to "3" or less. (See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

a

Domain users must be required to elevate when setting a networks location.

RMF Control: SC-3
Severity: L
CCI: CCI-001084
Version: WN12-CC-000005
Vuln IDs: V-21960
Rule IDs: SV-53182r1_rule

Selecting an incorrect network location may allow greater exposure of a system. Elevation is required by default on nondomain systems to change network location. This setting configures elevation to also be required on domain-joined systems.

Fix: F-46108r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Network Connections -> "Require domain users to elevate when setting a network's location" to "Enabled".

a

All Direct Access traffic must be routed through the internal network.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-CC-000006
Vuln IDs: V-21961
Rule IDs: SV-53183r1_rule

Routing all Direct Access traffic through the internal network allows monitoring and prevents split tunneling.

Fix: F-46109r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Network Connections -> "Route all traffic through the internal network" to "Enabled: Enabled State".

a

Windows Update must be prevented from searching for point and print drivers.

RMF Control: CM-11
Severity: L
CCI: CCI-001812
Version: WN12-CC-000016
Vuln IDs: V-21963
Rule IDs: SV-53184r1_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting will prevent Windows from searching Windows Update for point and print drivers. Only the local driver store and server driver cache will be searched.

Fix: F-46110r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Printers -> "Extend Point and Print connection to search Windows Update" to "Disabled".

a

Device metadata retrieval from the Internet must be prevented.

RMF Control: CM-7
Severity: L
CCI: CCI-000381
Version: WN12-CC-000022
Vuln IDs: V-21964
Rule IDs: SV-53185r2_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting will prevent Windows from retrieving device metadata from the Internet.

Fix: F-46111r3_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Device Installation >> "Prevent device metadata retrieval from the Internet" to "Enabled".

a

Device driver searches using Windows Update must be prevented.

RMF Control: CM-11
Severity: L
CCI: CCI-001812
Version: WN12-CC-000024
Vuln IDs: V-21965
Rule IDs: SV-53186r1_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting will prevent the system from searching Windows Update for device drivers.

Fix: F-46112r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Device Installation -> "Specify search order for device driver source locations" to "Enabled: Do not search Windows Update".

a

Microsoft Support Diagnostic Tool (MSDT) interactive communication with Microsoft must be prevented.

RMF Control: CM-7
Severity: L
CCI: CCI-000381
Version: WN12-CC-000066
Vuln IDs: V-21967
Rule IDs: SV-53187r1_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents the MSDT from communicating with and sending collected data to Microsoft, the default support provider.

Fix: F-46113r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Troubleshooting and Diagnostics -> Microsoft Support Diagnostic Tool -> "Microsoft Support Diagnostic Tool: Turn on MSDT interactive communication with support provider" to "Disabled".

a

Access to Windows Online Troubleshooting Service (WOTS) must be prevented.

RMF Control: CM-7
Severity: L
CCI: CCI-000381
Version: WN12-CC-000067
Vuln IDs: V-21969
Rule IDs: SV-53188r1_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents users from searching troubleshooting content on Microsoft servers. Only local content will be available.

Fix: F-46114r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Troubleshooting and Diagnostics -> Scripted Diagnostics -> "Troubleshooting: Allow users to access online troubleshooting content on Microsoft servers from the Troubleshooting Control Panel (via the Windows Online Troubleshooting Service - WOTS)" to "Disabled".

a

Responsiveness events must be prevented from being aggregated and sent to Microsoft.

RMF Control: CM-7
Severity: L
CCI: CCI-000381
Version: WN12-CC-000068
Vuln IDs: V-21970
Rule IDs: SV-53128r1_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents responsiveness events from being aggregated and sent to Microsoft.

Fix: F-46054r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Troubleshooting and Diagnostics -> Windows Performance PerfTrack -> "Enable/Disable PerfTrack" to "Disabled".

a

The Application Compatibility Program Inventory must be prevented from collecting data and sending the information to Microsoft.

RMF Control: CM-7
Severity: L
CCI: CCI-000381
Version: WN12-CC-000071
Vuln IDs: V-21971
Rule IDs: SV-53127r1_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting will prevent the Program Inventory from collecting data about a system and sending the information to Microsoft.

Fix: F-46053r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Application Compatibility -> "Turn off Inventory Collector" to "Enabled".

c

Autoplay must be turned off for non-volume devices.

RMF Control: CM-7
Severity: H
CCI: CCI-001764
Version: WN12-CC-000072
Vuln IDs: V-21973
Rule IDs: SV-53126r2_rule

Allowing Autoplay to execute may introduce malicious code to a system. Autoplay begins reading from a drive as soon as media is inserted into the drive. As a result, the setup file of programs or music on audio media may start. This setting will disable Autoplay for non-volume devices (such as Media Transfer Protocol (MTP) devices).

Fix: F-46052r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> AutoPlay Policies -> "Disallow Autoplay for non-volume devices" to "Enabled".

b

Explorer Data Execution Prevention must be enabled.

RMF Control: SI-16
Severity: M
CCI: CCI-002824
Version: WN12-CC-000089
Vuln IDs: V-21980
Rule IDs: SV-53125r1_rule

Data Execution Prevention (DEP) provides additional protection by performing checks on memory to help prevent malicious code from running. This setting will prevent Data Execution Prevention from being turned off for File Explorer.

Fix: F-46051r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> File Explorer -> "Turn off Data Execution Prevention for Explorer" to "Disabled".

c

The default Autorun behavior must be configured to prevent Autorun commands.

RMF Control: CM-7
Severity: H
CCI: CCI-001764
Version: WN12-CC-000073
Vuln IDs: V-22692
Rule IDs: SV-53124r2_rule

Allowing Autorun commands to execute may introduce malicious code to a system. Configuring this setting prevents Autorun commands from executing.

Fix: F-46050r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> AutoPlay Policies -> "Set the default behavior for AutoRun" to "Enabled:Do not execute any autorun commands".

c

Standard user accounts must only have Read permissions to the Winlogon registry key.

RMF Control: AC-6
Severity: H
CCI: CCI-002235
Version: WN12-RG-000001
Vuln IDs: V-26070
Rule IDs: SV-53123r4_rule

Permissions on the Winlogon registry key must only allow privileged accounts to change registry values. If standard users have these permissions, there is a potential for programs to run with elevated privileges when a privileged user logs on to the system.

Fix: F-80413r1_fix

Maintain permissions at least as restrictive as the defaults listed below for the "WinLogon" registry key. It is recommended to not change the permissions from the defaults. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\ The following are the same for each permission listed: Type - Allow Inherited from - MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion Applies to - This key and subkeys Columns: Principal - Access TrustedInstaller - Full Control SYSTEM - Full Control Administrators - Full Control Users - Read ALL APPLICATION PACKAGES - Read

c

Anonymous enumeration of SAM accounts must not be allowed.

RMF Control: CM-6
Severity: H
CCI: CCI-000366
Version: WN12-SO-000051
Vuln IDs: V-26283
Rule IDs: SV-53122r1_rule

Anonymous enumeration of SAM accounts allows anonymous log on users (null session connections) to list all accounts names, thus providing a list of potential points to attack the system.

Fix: F-46048r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network access: Do not allow anonymous enumeration of SAM accounts" to "Enabled".

a

The Windows dialog box title for the legal banner must be configured.

RMF Control: AC-8
Severity: L
CCI: CCI-000048
Version: WN12-SO-000023
Vuln IDs: V-26359
Rule IDs: SV-53121r2_rule

Failure to display the logon banner prior to a logon attempt will negate legal proceedings resulting from unauthorized access to system resources.

Fix: F-46047r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Interactive Logon: Message title for users attempting to log on" to "DoD Notice and Consent Banner", "US Department of Defense Warning Statement", or a site-defined equivalent. If a site-defined title is used, it can in no case contravene or modify the language of the banner text required in V-1089.

b

The Access Credential Manager as a trusted caller user right must not be assigned to any groups or accounts.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000001
Vuln IDs: V-26469
Rule IDs: SV-53120r2_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Access Credential Manager as a trusted caller" user right may be able to retrieve the credentials of other accounts from Credential Manager.

Fix: F-46046r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Access Credential Manager as a trusted caller" to be defined but containing no entries (blank).

b

Unauthorized accounts must not have the Access this computer from the network user right on domain controllers.

RMF Control: AC-3
Severity: M
CCI: CCI-000213
Version: WN12-UR-000002-DC
Vuln IDs: V-26470
Rule IDs: SV-51142r2_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Access this computer from the network" right may access resources on the system and should be limited to those requiring it.If an application requires this user right, this can be downgraded to not a finding if the following conditions are met: Vendor documentation must support the requirement for having the user right. The requirement must be documented with the ISSO. The application account must meet requirements for application account passwords, such as length (V-36661) and required changes frequency (V-36662).

Fix: F-44299r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Access this computer from the network" to only include the following accounts or groups: Administrators Authenticated Users Enterprise Domain Controllers

b

The Allow log on locally user right must only be assigned to the Administrators group.

RMF Control: AC-3
Severity: M
CCI: CCI-000213
Version: WN12-UR-000005
Vuln IDs: V-26472
Rule IDs: SV-52110r3_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Allow log on locally" user right can log on interactively to a system.

Fix: F-45135r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Allow log on locally" to only include the following accounts or groups: Administrators

b

The Allow log on through Remote Desktop Services user right must only be assigned to the Administrators group.

RMF Control: AC-3
Severity: M
CCI: CCI-000213
Version: WN12-UR-000006-DC
Vuln IDs: V-26473
Rule IDs: SV-53119r2_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Allow log on through Remote Desktop Services" user right can access a system through Remote Desktop.

Fix: F-74895r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Allow log on through Remote Desktop Services" to only include the following accounts or groups: Administrators

b

The Back up files and directories user right must only be assigned to the Administrators group.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000007
Vuln IDs: V-26474
Rule IDs: SV-52111r3_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Back up files and directories" user right can circumvent file and directory permissions and could allow access to sensitive data.

Fix: F-45136r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Back up files and directories" to only include the following accounts or groups: Administrators

b

The Create a pagefile user right must only be assigned to the Administrators group.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000011
Vuln IDs: V-26478
Rule IDs: SV-53063r2_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Create a pagefile" user right can change the size of a pagefile, which could affect system performance.

Fix: F-45989r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Create a pagefile" to only include the following accounts or groups: Administrators

c

The Create a token object user right must not be assigned to any groups or accounts.

RMF Control: AC-6
Severity: H
CCI: CCI-002235
Version: WN12-UR-000012
Vuln IDs: V-26479
Rule IDs: SV-52113r3_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Create a token object" user right allows a process to create an access token. This could be used to provide elevated rights and compromise a system.

Fix: F-45138r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Create a token object" to be defined but containing no entries (blank).

b

The Create global objects user right must only be assigned to Administrators, Service, Local Service, and Network Service.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000013
Vuln IDs: V-26480
Rule IDs: SV-52114r3_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Create global objects" user right can create objects that are available to all sessions, which could affect processes in other users' sessions.

Fix: F-45139r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Create global objects" to only include the following accounts or groups: Administrators Service Local Service Network Service

b

The Create permanent shared objects user right must not be assigned to any groups or accounts.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000014
Vuln IDs: V-26481
Rule IDs: SV-53059r2_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Create permanent shared objects" user right could expose sensitive data by creating shared objects.

Fix: F-45985r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Create permanent shared objects" to be defined but containing no entries (blank).

b

The Create symbolic links user right must only be assigned to the Administrators group.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000015
Vuln IDs: V-26482
Rule IDs: SV-53054r3_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Create symbolic links" user right can create pointers to other objects, which could potentially expose the system to attack.

Fix: F-66511r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Create symbolic links" to only include the following accounts or groups: Administrators Systems that have the Hyper-V role will also have "Virtual Machines" given this user right. If this needs to be added manually, enter it as "NT Virtual Machine\Virtual Machines".

b

The Deny log on as a batch job user right on domain controllers must be configured to prevent unauthenticated access.

RMF Control: AC-3
Severity: M
CCI: CCI-000213
Version: WN12-UR-000018-DC
Vuln IDs: V-26483
Rule IDs: SV-51145r1_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Deny log on as a batch job" user right defines accounts that are prevented from logging on to the system as a batch job, such as Task Scheduler. The Guests group must be assigned to prevent unauthenticated access.

Fix: F-44302r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Deny log on as a batch job" to include the following: Guests Group

b

The Deny log on as a service user right must be configured to include no accounts or groups (blank) on domain controllers.

RMF Control: AC-3
Severity: M
CCI: CCI-000213
Version: WN12-UR-000019-DC
Vuln IDs: V-26484
Rule IDs: SV-51146r1_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Deny log on as a service" user right defines accounts that are denied log on as a service. Incorrect configurations could prevent services from starting and result in a DoS.

Fix: F-44303r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Deny log on as a service" to include no entries (blank).

b

The Deny log on locally user right on domain controllers must be configured to prevent unauthenticated access.

RMF Control: AC-3
Severity: M
CCI: CCI-000213
Version: WN12-UR-000020-DC
Vuln IDs: V-26485
Rule IDs: SV-51147r1_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Deny log on locally" user right defines accounts that are prevented from logging on interactively. The Guests group must be assigned this right to prevent unauthenticated access.

Fix: F-44304r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Deny log on locally" to include the following: Guests Group

b

The Deny log on through Remote Desktop Services user right on domain controllers must be configured to prevent unauthenticated access.

RMF Control: AC-3
Severity: M
CCI: CCI-000213
Version: WN12-UR-000021-DC
Vuln IDs: V-26486
Rule IDs: SV-51148r1_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Deny log on through Remote Desktop Services" user right defines the accounts that are prevented from logging on using Remote Desktop Services. The Guests group must be assigned this right to prevent unauthenticated access.

Fix: F-44305r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Deny log on through Remote Desktop Services" to include the following: Guests Group

b

Unauthorized accounts must not have the Enable computer and user accounts to be trusted for delegation user right on domain controllers.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000022-DC
Vuln IDs: V-26487
Rule IDs: SV-51149r1_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Enable computer and user accounts to be trusted for delegation" user right allows the "Trusted for Delegation" setting to be changed. This could potentially allow unauthorized users to impersonate other users.

Fix: F-44306r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Enable computer and user accounts to be trusted for delegation" to only include the following accounts or groups: Administrators

b

The Force shutdown from a remote system user right must only be assigned to the Administrators group.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000023
Vuln IDs: V-26488
Rule IDs: SV-53050r2_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Force shutdown from a remote system" user right can remotely shut down a system, which could result in a DoS.

Fix: F-45976r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Force shutdown from a remote system" to only include the following accounts or groups: Administrators

b

The Generate security audits user right must only be assigned to Local Service and Network Service.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000024
Vuln IDs: V-26489
Rule IDs: SV-52116r3_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Generate security audits" user right specifies users and processes that can generate Security Log audit records, which must only be the system service accounts defined.

Fix: F-45141r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Generate security audits" to only include the following accounts or groups: Local Service Network Service

b

The Impersonate a client after authentication user right must only be assigned to Administrators, Service, Local Service, and Network Service.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000025
Vuln IDs: V-26490
Rule IDs: SV-52117r3_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Impersonate a client after authentication" user right allows a program to impersonate another user or account to run on their behalf. An attacker could potentially use this to elevate privileges.

Fix: F-45142r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Impersonate a client after authentication" to only include the following accounts or groups: Administrators Service Local Service Network Service

b

The Increase scheduling priority user right must only be assigned to the Administrators group.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000027
Vuln IDs: V-26492
Rule IDs: SV-52118r3_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Increase scheduling priority" user right can change a scheduling priority causing performance issues or a DoS.

Fix: F-45143r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Increase scheduling priority" to only include the following accounts or groups: Administrators

b

The Load and unload device drivers user right must only be assigned to the Administrators group.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000028
Vuln IDs: V-26493
Rule IDs: SV-53043r2_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Load and unload device drivers" user right allows device drivers to dynamically be loaded on a system by a user. This could potentially be used to install malicious code by an attacker.

Fix: F-45969r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Load and unload device drivers" to only include the following accounts or groups: Administrators

b

The Lock pages in memory user right must not be assigned to any groups or accounts.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000029
Vuln IDs: V-26494
Rule IDs: SV-52119r3_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Lock pages in memory" user right allows physical memory to be assigned to processes, which could cause performance issues or a DoS.

Fix: F-45144r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Lock pages in memory" to be defined but containing no entries (blank).

b

The Manage auditing and security log user right must only be assigned to the Administrators group.

RMF Control: AU-9
Severity: M
CCI: CCI-000162
Version: WN12-UR-000032
Vuln IDs: V-26496
Rule IDs: SV-53039r4_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Manage auditing and security log" user right can manage the security log and change auditing configurations. This could be used to clear evidence of tampering.

Fix: F-45965r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Manage auditing and security log" to only include the following accounts or groups: Administrators

b

The Modify firmware environment values user right must only be assigned to the Administrators group.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000034
Vuln IDs: V-26498
Rule IDs: SV-53029r2_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Modify firmware environment values" user right can change hardware configuration environment variables. This could result in hardware failures or a DoS.

Fix: F-45955r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Modify firmware environment values" to only include the following accounts or groups: Administrators

b

The Perform volume maintenance tasks user right must only be assigned to the Administrators group.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000035
Vuln IDs: V-26499
Rule IDs: SV-53025r2_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Perform volume maintenance tasks" user right can manage volume and disk configurations. They could potentially delete volumes, resulting in data loss or a DoS.

Fix: F-45951r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Perform volume maintenance tasks" to only include the following accounts or groups: Administrators

b

The Profile single process user right must only be assigned to the Administrators group.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000036
Vuln IDs: V-26500
Rule IDs: SV-53022r2_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Profile single process" user right can monitor nonsystem processes performance. An attacker could potentially use this to identify processes to attack.

Fix: F-45948r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Profile single process" to only include the following accounts or groups: Administrators

b

The Restore files and directories user right must only be assigned to the Administrators group.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000040
Vuln IDs: V-26504
Rule IDs: SV-52122r3_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Restore files and directories" user right can circumvent file and directory permissions and could allow access to sensitive data. It could also be used to overwrite more current data.

Fix: F-45147r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Restore files and directories" to only include the following accounts or groups: Administrators

b

The Take ownership of files or other objects user right must only be assigned to the Administrators group.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000042
Vuln IDs: V-26506
Rule IDs: SV-52123r3_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Take ownership of files or other objects" user right can take ownership of objects and make changes.

Fix: F-45148r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Take ownership of files or other objects" to only include the following accounts or groups: Administrators

b

The system must be configured to audit Account Logon - Credential Validation successes.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000001
Vuln IDs: V-26529
Rule IDs: SV-53013r2_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Credential validation records events related to validation tests on credentials for a user account logon.

Fix: F-45940r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> Account Logon -> "Audit Credential Validation" with "Success" selected.

b

The system must be configured to audit Account Logon - Credential Validation failures.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000002
Vuln IDs: V-26530
Rule IDs: SV-53011r2_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Credential validation records events related to validation tests on credentials for a user account logon.

Fix: F-45938r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> Account Logon -> "Audit Credential Validation" with "Failure" selected.

b

Windows Server 2012/2012 R2 domain controllers must be configured to audit Account Management - Computer Account Management successes.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000011-DC
Vuln IDs: V-26531
Rule IDs: SV-52234r4_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Computer Account Management records events such as creating, changing, deleting, renaming, disabling, or enabling computer accounts.

Fix: F-45249r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Account Management >> "Audit Computer Account Management" with "Success" selected.

b

The system must be configured to audit Account Management - Other Account Management Events successes.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000015
Vuln IDs: V-26533
Rule IDs: SV-53009r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Other Account Management Events records events such as the access of a password hash or the Password Policy Checking API being called.

Fix: F-45936r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> Account Management -> "Audit Other Account Management Events" with "Success" selected.

b

The system must be configured to audit Account Management - Security Group Management successes.

RMF Control: AC-2
Severity: M
CCI: CCI-000018
Version: WN12-AU-000017
Vuln IDs: V-26535
Rule IDs: SV-53007r2_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Security Group Management records events such as creating, deleting, or changing security groups, including changes in group members.

Fix: F-45934r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> Account Management -> "Audit Security Group Management" with "Success" selected.

b

The system must be configured to audit Account Management - User Account Management successes.

RMF Control: AC-2
Severity: M
CCI: CCI-000018
Version: WN12-AU-000019
Vuln IDs: V-26537
Rule IDs: SV-53003r2_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. User Account Management records events such as creating, changing, deleting, renaming, disabling, or enabling user accounts.

Fix: F-45930r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> Account Management -> "Audit User Account Management" with "Success" selected.

b

The system must be configured to audit Account Management - User Account Management failures.

RMF Control: AC-2
Severity: M
CCI: CCI-000018
Version: WN12-AU-000020
Vuln IDs: V-26538
Rule IDs: SV-53001r2_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. User Account Management records events such as creating, changing, deleting, renaming, disabling, or enabling user accounts.

Fix: F-45928r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> Account Management -> "Audit User Account Management" with "Failure" selected.

b

The system must be configured to audit Detailed Tracking - Process Creation successes.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000023
Vuln IDs: V-26539
Rule IDs: SV-52999r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Process Creation records events related to the creation of a process and the source.

Fix: F-45926r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> Detailed Tracking -> "Audit Process Creation" with "Success" selected.

b

The system must be configured to audit Logon/Logoff - Logoff successes.

RMF Control: AC-17
Severity: M
CCI: CCI-000067
Version: WN12-AU-000045
Vuln IDs: V-26540
Rule IDs: SV-52996r2_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Logoff records user logoffs. If this is an interactive logoff, it is recorded on the local system. If it is to a network share, it is recorded on the system accessed.

Fix: F-45923r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> Logon/Logoff -> "Audit Logoff" with "Success" selected.

b

The system must be configured to audit Logon/Logoff - Logon successes.

RMF Control: AC-17
Severity: M
CCI: CCI-000067
Version: WN12-AU-000047
Vuln IDs: V-26541
Rule IDs: SV-52994r2_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Logon records user logons. If this is an interactive logon, it is recorded on the local system. If it is to a network share, it is recorded on the system accessed.

Fix: F-45921r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> Logon/Logoff -> "Audit Logon" with "Success" selected.

b

The system must be configured to audit Logon/Logoff - Logon failures.

RMF Control: AC-17
Severity: M
CCI: CCI-000067
Version: WN12-AU-000048
Vuln IDs: V-26542
Rule IDs: SV-52993r2_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Logon records user logons. If this is an interactive logon, it is recorded on the local system. If it is to a network share, it is recorded on the system accessed.

Fix: F-45920r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> Logon/Logoff -> "Audit Logon" with "Failure" selected.

b

The system must be configured to audit Logon/Logoff - Special Logon successes.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000053
Vuln IDs: V-26543
Rule IDs: SV-52987r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Special Logon records special logons which have administrative privileges and can be used to elevate processes.

Fix: F-45913r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> Logon/Logoff -> "Audit Special Logon" with "Success" selected.

b

The system must be configured to audit Policy Change - Audit Policy Change successes.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000085
Vuln IDs: V-26546
Rule IDs: SV-52983r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Audit Policy Change records events related to changes in audit policy.

Fix: F-45909r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> Policy Change -> "Audit Audit Policy Change" with "Success" selected.

b

The system must be configured to audit Policy Change - Audit Policy Change failures.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000086
Vuln IDs: V-26547
Rule IDs: SV-52982r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Audit Policy Change records events related to changes in audit policy.

Fix: F-45908r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> Policy Change -> "Audit Audit Policy Change" with "Failure" selected.

b

The system must be configured to audit Policy Change - Authentication Policy Change successes.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000087
Vuln IDs: V-26548
Rule IDs: SV-52981r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Authentication Policy Change records events related to changes in authentication policy, including Kerberos policy and Trust changes.

Fix: F-45907r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> Policy Change -> "Audit Authentication Policy Change" with "Success" selected.

b

The system must be configured to audit Privilege Use - Sensitive Privilege Use successes.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000101
Vuln IDs: V-26549
Rule IDs: SV-52980r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Sensitive Privilege Use records events related to use of sensitive privileges, such as "Act as part of the operating system" or "Debug programs".

Fix: F-45906r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> Privilege Use -> "Audit Sensitive Privilege Use" with "Success" selected.

b

The system must be configured to audit Privilege Use - Sensitive Privilege Use failures.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000102
Vuln IDs: V-26550
Rule IDs: SV-52979r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Sensitive Privilege Use records events related to use of sensitive privileges, such as "Act as part of the operating system" or "Debug programs".

Fix: F-45905r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> Privilege Use -> "Audit Sensitive Privilege Use" with "Failure" selected.

b

The system must be configured to audit System - IPsec Driver successes.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000103
Vuln IDs: V-26551
Rule IDs: SV-52978r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. IPsec Driver records events related to the IPSec Driver such as dropped packets.

Fix: F-45904r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> System -> "Audit IPsec Driver" with "Success" selected.

b

The system must be configured to audit System - IPsec Driver failures.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000104
Vuln IDs: V-26552
Rule IDs: SV-52977r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. IPsec Driver records events related to the IPsec Driver such as dropped packets.

Fix: F-45903r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> System -> "Audit IPsec Driver" with "Failure" selected.

b

The system must be configured to audit System - Security State Change successes.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000107
Vuln IDs: V-26553
Rule IDs: SV-52976r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Security State Change records events related to changes in the security state, such as startup and shutdown of the system.

Fix: F-45902r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> System -> "Audit Security State Change" with "Success" selected.

b

The system must be configured to audit System - Security System Extension successes.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000109
Vuln IDs: V-26555
Rule IDs: SV-52974r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Security System Extension records events related to extension code being loaded by the security subsystem.

Fix: F-45900r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> System -> "Audit Security System Extension" with "Success" selected.

b

The system must be configured to audit System - System Integrity successes.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000111
Vuln IDs: V-26557
Rule IDs: SV-52972r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. System Integrity records events related to violations of integrity to the security subsystem.

Fix: F-45898r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> System -> "Audit System Integrity" with "Success" selected.

b

The system must be configured to audit System - System Integrity failures.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000112
Vuln IDs: V-26558
Rule IDs: SV-52971r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. System Integrity records events related to violations of integrity to the security subsystem.

Fix: F-45897r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> System -> "Audit System Integrity" with "Failure" selected.

b

The 6to4 IPv6 transition technology must be disabled.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000007
Vuln IDs: V-26575
Rule IDs: SV-52970r1_rule

IPv6 transition technologies, which tunnel packets through other protocols, do not provide visibility.

Fix: F-45896r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> TCPIP Settings -> IPv6 Transition Technologies -> "Set 6to4 State" to "Enabled: Disabled State".

b

The IP-HTTPS IPv6 transition technology must be disabled.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000008
Vuln IDs: V-26576
Rule IDs: SV-52969r1_rule

IPv6 transition technologies, which tunnel packets through other protocols, do not provide visibility.

Fix: F-45895r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> TCPIP Settings -> IPv6 Transition Technologies -> "Set IP-HTTPS State" to "Enabled: Disabled State". Note: "IPHTTPS URL:" must be entered in the policy even if set to Disabled State. Enter "about:blank".

b

The ISATAP IPv6 transition technology must be disabled.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000009
Vuln IDs: V-26577
Rule IDs: SV-52968r1_rule

IPv6 transition technologies, which tunnel packets through other protocols, do not provide visibility.

Fix: F-45894r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> TCPIP Settings -> IPv6 Transition Technologies -> "Set ISATAP State" to "Enabled: Disabled State".

b

The Teredo IPv6 transition technology must be disabled.

RMF Control: CM-7
Severity: M
CCI: CCI-000382
Version: WN12-CC-000010
Vuln IDs: V-26578
Rule IDs: SV-52967r1_rule

IPv6 transition technologies, which tunnel packets through other protocols, do not provide visibility.

Fix: F-45893r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> TCPIP Settings -> IPv6 Transition Technologies -> "Set Teredo State" to "Enabled: Disabled State".

b

The Application event log size must be configured to 32768 KB or greater.

RMF Control: AU-4
Severity: M
CCI: CCI-001849
Version: WN12-CC-000084
Vuln IDs: V-26579
Rule IDs: SV-52966r2_rule

Inadequate log size will cause the log to fill up quickly. This may prevent audit events from being recorded properly and require frequent attention by administrative personnel.

Fix: F-71601r2_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Event Log Service >> Application >> "Specify the maximum log file size (KB)" to "Enabled" with a "Maximum Log Size (KB)" of "32768" or greater.

b

The Security event log size must be configured to 196608 KB or greater.

RMF Control: AU-4
Severity: M
CCI: CCI-001849
Version: WN12-CC-000085
Vuln IDs: V-26580
Rule IDs: SV-52965r2_rule

Inadequate log size will cause the log to fill up quickly. This may prevent audit events from being recorded properly and require frequent attention by administrative personnel.

Fix: F-71603r2_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Event Log Service >> Security >> "Specify the maximum log file size (KB)" to "Enabled" with a "Maximum Log Size (KB)" of "196608" or greater.

b

The Setup event log size must be configured to 32768 KB or greater.

RMF Control: AU-4
Severity: M
CCI: CCI-001849
Version: WN12-CC-000086
Vuln IDs: V-26581
Rule IDs: SV-52964r2_rule

Inadequate log size will cause the log to fill up quickly. This may prevent audit events from being recorded properly and require frequent attention by administrative personnel.

Fix: F-71605r2_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Event Log Service >> Setup >> "Specify the maximum log file size (KB)" to "Enabled" with a "Maximum Log Size (KB)" of "32768" or greater.

b

The System event log size must be configured to 32768 KB or greater.

RMF Control: AU-4
Severity: M
CCI: CCI-001849
Version: WN12-CC-000087
Vuln IDs: V-26582
Rule IDs: SV-52963r2_rule

Inadequate log size will cause the log to fill up quickly. This may prevent audit events from being recorded properly and require frequent attention by administrative personnel.

Fix: F-71607r2_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Event Log Service >> System >> "Specify the maximum log file size (KB)" to "Enabled" with a "Maximum Log Size (KB)" of "32768" or greater.

b

The Fax service must be disabled if installed.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-SV-000100
Vuln IDs: V-26600
Rule IDs: SV-52236r2_rule

Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption.ECSC-1

Fix: F-45251r1_fix

Remove or disable the Fax (fax) service.

b

The Microsoft FTP service must not be installed unless required.

RMF Control: CM-7
Severity: M
CCI: CCI-000382
Version: WN12-SV-000101
Vuln IDs: V-26602
Rule IDs: SV-52237r4_rule

Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption.

Fix: F-74887r1_fix

Remove or disable the "Microsoft FTP Service" (Service name: FTPSVC). To remove the "FTP Server" role from a system: Start "Server Manager" Select the server with the "FTP Server" role. Scroll down to "ROLES AND FEATURES" in the left pane. Select "Remove Roles and Features" from the drop down "TASKS" list. Select the appropriate server on the "Server Selection" page, click "Next". De-select "FTP Server" under "Web Server (IIS). Click "Next" and "Remove" as prompted.

b

The Peer Networking Identity Manager service must be disabled if installed.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-SV-000103
Vuln IDs: V-26604
Rule IDs: SV-52238r2_rule

Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption.ECSC-1

Fix: F-45253r1_fix

Remove or disable the Peer Networking Identity Manager (p2pimsvc) service.

b

The Simple TCP/IP Services service must be disabled if installed.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-SV-000104
Vuln IDs: V-26605
Rule IDs: SV-52239r2_rule

Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption.ECSC-1

Fix: F-45254r1_fix

Remove or disable the Simple TCP/IP Services (simptcp) service.

b

The Telnet service must be disabled if installed.

RMF Control: CM-7
Severity: M
CCI: CCI-000382
Version: WN12-SV-000105
Vuln IDs: V-26606
Rule IDs: SV-52240r2_rule

Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption.ECSC-1

Fix: F-45255r1_fix

Remove or disable the Telnet (tlntsvr) service.

a

Windows must be prevented from sending an error report when a device driver requests additional software during installation.

RMF Control: CM-7
Severity: L
CCI: CCI-000381
Version: WN12-CC-000023
Vuln IDs: V-28504
Rule IDs: SV-52962r1_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting will prevent Windows from sending an error report to Microsoft when a device driver requests additional software during installation.

Fix: F-45888r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Device Installation -> "Prevent Windows from sending an error report when a device driver requests additional software during installation" to "Enabled".

b

Unauthorized accounts must not have the Add workstations to domain user right.

RMF Control: AC-6
Severity: M
CCI: CCI-002235
Version: WN12-UR-000044-DC
Vuln IDs: V-30016
Rule IDs: SV-51143r2_rule

Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Add workstations to domain" right may add computers to a domain. This could result in unapproved or incorrectly configured systems being added to a domain.ECLP-1

Fix: F-44300r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> User Rights Assignment -> "Add workstations to domain" to only include the following accounts or groups: Administrators

b

The DoD Root CA certificates must be installed in the Trusted Root Store.

RMF Control: IA-5
Severity: M
CCI: CCI-000185
Version: WN12-PK-000001
Vuln IDs: V-32272
Rule IDs: SV-52961r6_rule

To ensure secure DoD websites and DoD-signed code are properly validated, the system must trust the DoD Root Certificate Authorities (CAs). The DoD root certificates will ensure that the trust chain is established for server certificates issued from the DoD CAs.

Fix: F-87317r1_fix

Install the DoD Root CA certificates. DoD Root CA 2 DoD Root CA 3 DoD Root CA 4 DoD Root CA 5 The InstallRoot tool is available on IASE at http://iase.disa.mil/pki-pke/Pages/tools.aspx.

b

The DoD Interoperability Root CA cross-certificates must be installed into the Untrusted Certificates Store on unclassified systems.

RMF Control: IA-5
Severity: M
CCI: CCI-000185
Version: WN12-PK-000003
Vuln IDs: V-32274
Rule IDs: SV-52957r6_rule

To ensure users do not experience denial of service when performing certificate-based authentication to DoD websites due to the system chaining to a root other than DoD Root CAs, the DoD Interoperability Root CA cross-certificates must be installed in the Untrusted Certificate Store. This requirement only applies to unclassified systems.

Fix: F-78949r2_fix

Install the DoD Interoperability Root CA cross-certificates on unclassified systems. Issued To - Issued By - Thumbprint DoD Root CA 2 - DoD Interoperability Root CA 1 - 22BBE981F0694D246CC1472ED2B021DC8540A22F DoD Root CA 3 - DoD Interoperability Root CA 2 - FFAD03329B9E527A43EEC66A56F9CBB5393E6E13 DoD Root CA 3 - DoD Interoperability Root CA 2 - FCE1B1E25374DD94F5935BEB86CA643D8C8D1FF4 Administrators should run the Federal Bridge Certification Authority (FBCA) Cross-Certificate Removal Tool once as an administrator and once as the current user. The FBCA Cross-Certificate Remover tool and user guide is available on IASE at http://iase.disa.mil/pki-pke/Pages/tools.aspx.

c

Standard user accounts must only have Read permissions to the Active Setup\Installed Components registry key.

RMF Control: AC-6
Severity: H
CCI: CCI-002235
Version: WN12-RG-000002
Vuln IDs: V-32282
Rule IDs: SV-52956r3_rule

Permissions on the Active Setup\Installed Components registry key must only allow privileged accounts to add or change registry values. If standard user accounts have these permissions, there is a potential for programs to run with elevated privileges when a privileged user logs on to the system.

Fix: F-71731r1_fix

Maintain the default permissions of the following registry keys: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\ HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\ (64-bit systems only) Users - Read Administrators - Full Control SYSTEM - Full Control CREATOR OWNER - Full Control (Subkeys only) ALL APPLICATION PACKAGES - Read

b

The system must be configured to audit DS Access - Directory Service Access successes.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000031-DC
Vuln IDs: V-33663
Rule IDs: SV-51151r2_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detecting attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Audit directory service access records events related to users accessing an Active Directory object.ECAR-2, ECAR-3

Fix: F-44308r1_fix

Detailed auditing subcategories are configured in Security Settings -> Advanced Audit Policy Configuration. The summary level settings under Security Settings -> Local Policies -> Audit Policy will not be enforced (see V-14230). Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> DS Access -> "Directory Service Access" with "Success" selected.

b

The system must be configured to audit DS Access - Directory Service Access failures.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000032-DC
Vuln IDs: V-33664
Rule IDs: SV-51152r2_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detecting attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Audit directory service access records events related to users accessing an Active Directory object.ECAR-2, ECAR-3

Fix: F-44309r1_fix

Detailed auditing subcategories are configured in Security Settings -> Advanced Audit Policy Configuration. The summary level settings under Security Settings -> Local Policies -> Audit Policy will not be enforced (see V-14230). Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> DS Access -> "Directory Service Access" with "Failure" selected.

b

The system must be configured to audit DS Access - Directory Service Changes successes.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000035-DC
Vuln IDs: V-33665
Rule IDs: SV-51153r2_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detecting attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Audit directory service changes records events related to changes made to objects in Active Directory Domain Services.ECAR-2, ECAR-3

Fix: F-44311r1_fix

Detailed auditing subcategories are configured in Security Settings -> Advanced Audit Policy Configuration. The summary level settings under Security Settings -> Local Policies -> Audit Policy will not be enforced (see V-14230). Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> DS Access -> "Directory Service Changes" with "Success" selected.

b

The system must be configured to audit DS Access - Directory Service Changes failures.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000036-DC
Vuln IDs: V-33666
Rule IDs: SV-51155r2_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detecting attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Audit directory service changes records events related to changes made to objects in Active Directory Domain Services.ECAR-2, ECAR-3

Fix: F-44313r1_fix

Detailed auditing subcategories are configured in Security Settings -> Advanced Audit Policy Configuration. The summary level settings under Security Settings -> Local Policies -> Audit Policy will not be enforced (see V-14230). Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> DS Access -> "Directory Service Changes" with "Failure" selected.

c

The Windows Installer Always install with elevated privileges option must be disabled.

RMF Control: CM-11
Severity: H
CCI: CCI-001812
Version: WN12-CC-000116
Vuln IDs: V-34974
Rule IDs: SV-52954r1_rule

Standard user accounts must not be granted elevated privileges. Enabling Windows Installer to elevate privileges when installing applications can allow malicious persons and applications to gain full control of a system.

Fix: F-45880r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Installer -> "Always install with elevated privileges" to "Disabled".

a

IP stateless autoconfiguration limits state must be enabled.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-CC-000011
Vuln IDs: V-36673
Rule IDs: SV-51605r1_rule

IP stateless autoconfiguration could configure routes that circumvent preferred routes if not limited.ECSC-1

Fix: F-44726r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> TCPIP Settings -> Parameters -> "Set IP Stateless Autoconfiguration Limits State" to "Enabled".

a

Optional component installation and component repair must be prevented from using Windows Update.

RMF Control: CM-11
Severity: L
CCI: CCI-001812
Version: WN12-CC-000018
Vuln IDs: V-36677
Rule IDs: SV-51606r1_rule

Uncontrolled system updates can introduce issues to a system. Obtaining update components from an outside source may also potentially provide sensitive information outside of the enterprise. Optional component installation or repair must be obtained from an internal source.ECSC-1

Fix: F-44727r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> "Specify settings for optional component installation and component repair" to "Enabled" and with "Never attempt to download payload from Windows Update" selected.

a

Device driver updates must only search managed servers, not Windows Update.

RMF Control: CM-11
Severity: L
CCI: CCI-001812
Version: WN12-CC-000025
Vuln IDs: V-36678
Rule IDs: SV-51607r1_rule

Uncontrolled system updates can introduce issues to a system. Obtaining update components from an outside source may also potentially provide sensitive information outside of the enterprise. Device driver updates must be obtained from an internal source.ECSC-1

Fix: F-44728r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Device Installation -> "Specify the search server for device driver updates" to "Enabled" with "Search Managed Server" selected.

b

Early Launch Antimalware, Boot-Start Driver Initialization Policy must be enabled and configured to only Good and Unknown.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-CC-000027
Vuln IDs: V-36679
Rule IDs: SV-51608r1_rule

Compromised boot drivers can introduce malware prior to some protection mechanisms that load after initialization. The Early Launch Antimalware driver can limit allowed drivers based on classifications determined by the malware protection application. At a minimum, drivers determined to be bad must not be allowed.ECVP-1

Fix: F-44729r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Early Launch Antimalware -> "Boot-Start Driver Initialization Policy" to "Enabled" with "Good and Unknown" selected.

b

Access to the Windows Store must be turned off.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-CC-000030
Vuln IDs: V-36680
Rule IDs: SV-51609r2_rule

Uncontrolled installation of applications can introduce various issues, including system instability, and allow access to sensitive information. Installation of applications must be controlled by the enterprise. Turning off access to the Windows Store will limit access to publicly available applications.

Fix: F-74883r1_fix

If the \Windows\WinStore directory exists, configure the policy value for Computer Configuration >> Administrative Templates >> System >> Internet Communication Management >> Internet Communication settings >> "Turn off access to the Store" to "Enabled". Alternately, uninstall the "Desktop Experience" feature from Windows 2012. This is located under "User Interfaces and Infrastructure" in the "Add Roles and Features Wizard". The \Windows\WinStore directory may need to be manually deleted after this.

b

Copying of user input methods to the system account for sign-in must be prevented.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000048
Vuln IDs: V-36681
Rule IDs: SV-51610r1_rule

Allowing different input methods for sign-in could open different avenues of attack. User input methods must be restricted to those enabled for the system account at sign-in.ECSC-1

Fix: F-44731r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Locale Services -> "Disallow copying of user input methods to the system account for sign-in" to "Enabled".

b

Local users on domain-joined computers must not be enumerated.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000051
Vuln IDs: V-36684
Rule IDs: SV-51611r1_rule

The username is one part of logon credentials that could be used to gain access to a system. Preventing the enumeration of users limits this information to authorized personnel.ECSC-1

Fix: F-44732r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Logon -> "Enumerate local users on domain-joined computers" to "Disabled".

b

App notifications on the lock screen must be turned off.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000052
Vuln IDs: V-36687
Rule IDs: SV-51612r1_rule

App notifications that are displayed on the lock screen could display sensitive information to unauthorized personnel. Turning off this feature will limit access to the information to a logged on user.ECSC-1

Fix: F-44733r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Logon -> "Turn off app notifications on the lock screen" to "Enabled".

a

The detection of compatibility issues for applications and drivers must be turned off.

RMF Control: CM-7
Severity: L
CCI: CCI-000381
Version: WN12-CC-000065
Vuln IDs: V-36696
Rule IDs: SV-51737r2_rule

Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this feature will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system.

Fix: F-44812r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Troubleshooting and Diagnostics -> Application Compatibility Diagnostics -> "Detect compatibility issues for applications and drivers" to "Disabled".

a

Trusted app installation must be enabled to allow for signed enterprise line of business apps.

RMF Control: CM-6
Severity: L
CCI: CCI-000366
Version: WN12-CC-000070
Vuln IDs: V-36697
Rule IDs: SV-51738r1_rule

Enabling trusted app installation allows for enterprise line of business Windows 8 type apps. A trusted app package is one that is signed with a certificate chain that can be successfully validated in the enterprise. Configuring this ensures enterprise line of business apps are accessible.ECSC-1

Fix: F-44813r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> App Package Deployment -> "Allow all trusted apps to install" to "Enabled".

b

The use of biometrics must be disabled.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000075
Vuln IDs: V-36698
Rule IDs: SV-51739r1_rule

Allowing biometrics may bypass required authentication methods. Biometrics may only be used as an additional authentication factor where an enhanced strength of identity credential is necessary or desirable. Additional factors must be met per DoD policy.IAIA-1

Fix: F-44814r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Biometrics -> "Allow the use of biometrics" to "Disabled".

b

The password reveal button must not be displayed.

RMF Control: IA-6
Severity: M
CCI: CCI-000206
Version: WN12-CC-000076
Vuln IDs: V-36700
Rule IDs: SV-51740r1_rule

Visible passwords may be seen by nearby persons, compromising them. The password reveal button can be used to display an entered password and must not be allowed.IAIA-1

Fix: F-44815r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Credential User Interface -> "Do not display the password reveal button" to "Enabled".

b

Windows SmartScreen must be enabled on Windows 2012/2012 R2.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000088
Vuln IDs: V-36707
Rule IDs: SV-51747r4_rule

Windows SmartScreen helps protect systems from programs downloaded from the Internet that may be malicious. Warning a user before running downloaded unknown software, at minimum, will help prevent potentially malicious programs from executing.

Fix: F-87297r2_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> File Explorer >> "Configure Windows SmartScreen" to "Enabled" with either "Give user a warning before running downloaded unknown software" or "Require approval from an administrator before running downloaded unknown software" selected. Microsoft has changed this setting several times in the Windows 10 administrative templates, which will affect group policies in a domain if later templates are used. v1607 of Windows 10 and Windows Server 2016 changed the setting to only Enabled or Disabled without additional selections. Enabled is effectively "Give user a warning…". v1703 of Windows 10 or later administrative templates changed the policy name to "Configure Windows Defender SmartScreen", and the selectable options are "Warn" and "Warn and prevent bypass". When either of these are applied to a Windows 2012/2012 R2 system, it will configure the registry equivalent of "Give user a warning…").

b

The location feature must be turned off.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000095
Vuln IDs: V-36708
Rule IDs: SV-51748r2_rule

The location service on systems may allow sensitive data to be used by applications on the system. This should be turned off unless explicitly allowed for approved systems/applications.

Fix: F-44823r2_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Location and Sensors -> "Turn off location" to "Enabled". If location services are approved by the organization for a device, this must be documented.

b

Basic authentication for RSS feeds over HTTP must be turned off.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-CC-000106
Vuln IDs: V-36709
Rule IDs: SV-51749r1_rule

Basic authentication uses plain text passwords that could be used to compromise a system.ECSC-1

Fix: F-44824r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> RSS Feeds -> "Turn on Basic feed authentication over HTTP" to "Disabled".

c

The Windows Remote Management (WinRM) client must not use Basic authentication.

RMF Control: MA-4
Severity: H
CCI: CCI-000877
Version: WN12-CC-000123
Vuln IDs: V-36712
Rule IDs: SV-51752r1_rule

Basic authentication uses plain text passwords that could be used to compromise a system.IAIA-1

Fix: F-44827r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Remote Management (WinRM) -> WinRM Client -> "Allow Basic authentication" to "Disabled".

b

The Windows Remote Management (WinRM) client must not allow unencrypted traffic.

RMF Control: MA-4
Severity: M
CCI: CCI-002890
Version: WN12-CC-000124
Vuln IDs: V-36713
Rule IDs: SV-51753r2_rule

Unencrypted remote access to a system can allow sensitive information to be compromised. Windows remote management connections must be encrypted to prevent this.

Fix: F-44828r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Remote Management (WinRM) -> WinRM Client -> "Allow unencrypted traffic" to "Disabled".

b

The Windows Remote Management (WinRM) client must not use Digest authentication.

RMF Control: MA-4
Severity: M
CCI: CCI-000877
Version: WN12-CC-000125
Vuln IDs: V-36714
Rule IDs: SV-51754r1_rule

Digest authentication is not as strong as other options and may be subject to man-in-the-middle attacks.IAIA-1

Fix: F-44829r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Remote Management (WinRM) -> WinRM Client -> "Disallow Digest authentication" to "Enabled".

c

The Windows Remote Management (WinRM) service must not use Basic authentication.

RMF Control: MA-4
Severity: H
CCI: CCI-000877
Version: WN12-CC-000126
Vuln IDs: V-36718
Rule IDs: SV-51755r2_rule

Basic authentication uses plain text passwords that could be used to compromise a system.

Fix: F-44830r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Remote Management (WinRM) -> WinRM Service -> "Allow Basic authentication" to "Disabled".

b

The Windows Remote Management (WinRM) service must not allow unencrypted traffic.

RMF Control: MA-4
Severity: M
CCI: CCI-002890
Version: WN12-CC-000127
Vuln IDs: V-36719
Rule IDs: SV-51756r2_rule

Unencrypted remote access to a system can allow sensitive information to be compromised. Windows remote management connections must be encrypted to prevent this.

Fix: F-44831r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Remote Management (WinRM) -> WinRM Service -> "Allow unencrypted traffic" to "Disabled".

b

The Windows Remote Management (WinRM) service must not store RunAs credentials.

RMF Control: IA-11
Severity: M
CCI: CCI-002038
Version: WN12-CC-000128
Vuln IDs: V-36720
Rule IDs: SV-51757r1_rule

Storage of administrative credentials could allow unauthorized access. Disallowing the storage of RunAs credentials for Windows Remote Management will prevent them from being used with plug-ins.ECLP-1

Fix: F-44832r1_fix

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Remote Management (WinRM) -> WinRM Service -> "Disallow WinRM from storing RunAs credentials" to "Enabled".

b

The machine inactivity limit must be set to 15 minutes, locking the system with the screensaver.

RMF Control: AC-11
Severity: M
CCI: CCI-000057
Version: WN12-SO-000021
Vuln IDs: V-36773
Rule IDs: SV-51596r2_rule

Unattended systems are susceptible to unauthorized use and should be locked when unattended. The screen saver should be set at a maximum of 15 minutes and be password protected. This protects critical and sensitive data from exposure to unauthorized personnel with physical access to the computer.

Fix: F-44717r2_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Interactive logon: Machine inactivity limit" to "900" seconds" or less, excluding "0" which is effectively disabled.

b

The Smart Card Removal Policy service must be configured to automatic.

RMF Control: CM-6
Severity: M
CCI: CCI-000366
Version: WN12-SV-000106
Vuln IDs: V-40206
Rule IDs: SV-52165r2_rule

The automatic start of the Smart Card Removal Policy service is required to support the smart card removal behavior requirement.ECSC-1

Fix: F-45191r1_fix

Configure the Startup Type for the Smart Card Removal Policy service to "Automatic".

b

The US DoD CCEB Interoperability Root CA cross-certificates must be installed into the Untrusted Certificates Store on unclassified systems.

RMF Control: IA-5
Severity: M
CCI: CCI-000185
Version: WN12-PK-000004
Vuln IDs: V-40237
Rule IDs: SV-52196r5_rule

To ensure users do not experience denial of service when performing certificate-based authentication to DoD websites due to the system chaining to a root other than DoD Root CAs, the US DoD CCEB Interoperability Root CA cross-certificates must be installed in the Untrusted Certificate Store. This requirement only applies to unclassified systems.

Fix: F-87319r1_fix

Install the US DoD CCEB Interoperability Root CA cross-certificate on unclassified systems. Issued To - Issued By - Thumbprint DoD Root CA 2 - US DoD CCEB Interoperability Root CA 1 - DA36FAF56B2F6FBA1604F5BE46D864C9FA013BA3 DoD Root CA 3 - US DoD CCEB Interoperability Root CA 2 - 929BF3196896994C0A201DF4A5B71F603FEFBF2E Administrators should run the Federal Bridge Certification Authority (FBCA) Cross-Certificate Removal Tool once as an administrator and once as the current user. The FBCA Cross-Certificate Remover tool and user guide is available on IASE at http://iase.disa.mil/pki-pke/Pages/tools.aspx.

b

Windows 2012 R2 must include command line data in process creation events.

RMF Control: AU-3
Severity: M
CCI: CCI-000135
Version: WN12-CC-000139
Vuln IDs: V-43239
Rule IDs: SV-56344r3_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Enabling "Include command line data for process creation events" will record the command line information with the process creation events in the log. This can provide additional detail when malware has run on a system.

Fix: F-82939r1_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Audit Process Creation >> "Include command line in process creation events" to "Enabled".

b

The system must be configured to audit Policy Change - Authorization Policy Change successes.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000089
Vuln IDs: V-57633
Rule IDs: SV-72043r1_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Authorization Policy Change records events related to changes in user rights, such as Create a token object.

Fix: F-62835r1_fix

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration -> System Audit Policies -> Policy Change -> "Audit Authorization Policy Change" with "Success" selected.

b

Users must be required to enter a password to access private keys stored on the computer.

RMF Control: IA-5
Severity: M
CCI: CCI-000186
Version: WN12-SO-000092
Vuln IDs: V-57639
Rule IDs: SV-72049r2_rule

If the private key is discovered, an attacker can use the key to authenticate as an authorized user and gain access to the network infrastructure. The cornerstone of the PKI is the private key used to encrypt or digitally sign information. If the private key is stolen, this will lead to the compromise of the authentication and non-repudiation gained through PKI because the attacker can use the private key to digitally sign documents and pretend to be the authorized user. Both the holders of a digital certificate and the issuing authority must protect the computers, storage devices, or whatever they use to keep the private keys.

Fix: F-62841r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "System cryptography: Force strong key protection for user keys stored on the computer" to "User must enter a password each time they use a key".

b

Event Viewer must be protected from unauthorized modification and deletion.

RMF Control: AU-9
Severity: M
CCI: CCI-001494
Version: WN12-AU-000213
Vuln IDs: V-57721
Rule IDs: SV-72135r2_rule

Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefore, protecting audit tools is necessary to prevent unauthorized operation on audit information. Operating systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools and the corresponding rights the user enjoys in order to make access decisions regarding the modification or deletion of audit tools.

Fix: F-62927r2_fix

Ensure only TrustedInstaller has permissions to change or modify Event Viewer ("%SystemRoot%\SYSTEM32\Eventvwr.exe). The default permissions below satisfy this requirement. TrustedInstaller - Full Control Administrators, SYSTEM, Users, ALL APPLICATION PACKAGES - Read & Execute

b

The Server Message Block (SMB) v1 protocol must be disabled on the SMB server.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-00-000170
Vuln IDs: V-73519
Rule IDs: SV-88193r2_rule

SMBv1 is a legacy protocol that uses the MD5 algorithm as part of SMB. MD5 is known to be vulnerable to a number of attacks such as collision and preimage attacks as well as not being FIPS compliant. Disabling SMBv1 support may prevent access to file or print sharing resources with systems or devices that only support SMBv1. File shares and print services hosted on Windows Server 2003 are an example, however Windows Server 2003 is no longer a supported operating system. Some older network attached devices may only support SMBv1.

Fix: F-82945r1_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> MS Security Guide >> "Configure SMBv1 Server" to "Disabled". The system must be restarted for the change to take effect. This policy setting requires the installation of the SecGuide custom templates included with the STIG package. "SecGuide.admx" and "SecGuide.adml" must be copied to the \Windows\PolicyDefinitions and \Windows\PolicyDefinitions\en-US directories respectively.

b

The Server Message Block (SMB) v1 protocol must be disabled on the SMB client.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-00-000180
Vuln IDs: V-73523
Rule IDs: SV-88205r2_rule

SMBv1 is a legacy protocol that uses the MD5 algorithm as part of SMB. MD5 is known to be vulnerable to a number of attacks such as collision and preimage attacks as well as not being FIPS compliant. Disabling SMBv1 support may prevent access to file or print sharing resources with systems or devices that only support SMBv1. File shares and print services hosted on Windows Server 2003 are an example, however Windows Server 2003 is no longer a supported operating system. Some older network attached devices may only support SMBv1.

Fix: F-82947r1_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> MS Security Guide >> "Configure SMBv1 client driver" to "Enabled" with "Disable driver (recommended)" selected for "Configure MrxSmb10 driver". Configure the policy value for Computer Configuration >> Administrative Templates >> MS Security Guide >> "Configure SMBv1 client (extra setting needed for pre-Win8.1/2012R2)" to "Enabled" with the following three lines of text entered for "Configure LanmanWorkstation Dependencies": Bowser MRxSmb20 NSI The system must be restarted for the changes to take effect. These policy settings requires the installation of the SecGuide custom templates included with the STIG package. "SecGuide.admx" and "SecGuide.adml" must be copied to the \Windows\PolicyDefinitions and \Windows\PolicyDefinitions\en-US directories respectively.

b

The Server Message Block (SMB) v1 protocol must be disabled on Windows 2012 R2.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-00-000160
Vuln IDs: V-73805
Rule IDs: SV-88471r2_rule

SMBv1 is a legacy protocol that uses the MD5 algorithm as part of SMB. MD5 is known to be vulnerable to a number of attacks such as collision and preimage attacks as well as not being FIPS compliant. Disabling SMBv1 support may prevent access to file or print sharing resources with systems or devices that only support SMBv1. File shares and print services hosted on Windows Server 2003 are an example, however Windows Server 2003 is no longer a supported operating system. Some older network attached devices may only support SMBv1.

Fix: F-80261r1_fix

Run "Windows PowerShell" with elevated privileges (run as administrator). Enter the following: Disable-WindowsOptionalFeature -Online -FeatureName SMB1Protocol Alternately: Search for "Features". Select "Turn Windows features on or off". De-select "SMB 1.0/CIFS File Sharing Support". The system must be restarted for the changes to take effect.

b

Windows Server 2012/2012 R2 must be configured to audit Logon/Logoff - Account Lockout successes.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000030
Vuln IDs: V-78057
Rule IDs: SV-92765r2_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Account Lockout events can be used to identify potentially malicious logon attempts.

Fix: F-84781r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Logon/Logoff >> "Audit Account Lockout" with "Success" selected.

b

Windows Server 2012/2012 R2 must be configured to audit Logon/Logoff - Account Lockout failures.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000031
Vuln IDs: V-78059
Rule IDs: SV-92769r2_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Account Lockout events can be used to identify potentially malicious logon attempts.

Fix: F-84787r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Logon/Logoff >> "Audit Account Lockout" with "Failure" selected.

b

Windows Server 2012/2012 R2 must be configured to audit System - Other System Events successes.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000105
Vuln IDs: V-78061
Rule IDs: SV-92773r2_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Audit Other System Events records information related to cryptographic key operations and the Windows Firewall service.

Fix: F-84791r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> System >> "Audit Other System Events" with "Success" selected.

b

Windows Server 2012/2012 R2 must be configured to audit System - Other System Events failures.

RMF Control: AU-12
Severity: M
CCI: CCI-000172
Version: WN12-AU-000106
Vuln IDs: V-78063
Rule IDs: SV-92781r2_rule

Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Audit Other System Events records information related to cryptographic key operations and the Windows Firewall service.

Fix: F-84799r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> System >> "Audit Other System Events" with "Failure" selected.

b

Windows PowerShell 2.0 must not be installed on Windows 2012/2012 R2.

RMF Control: CM-7
Severity: M
CCI: CCI-000381
Version: WN12-00-000220
Vuln IDs: V-80477
Rule IDs: SV-95185r1_rule

Windows PowerShell versions 4.0 (with a patch) and 5.x add advanced logging features that can provide additional detail when malware has been run on a system. Ensuring Windows PowerShell 2.0 is not installed as well mitigates against a downgrade attack that evades the advanced logging features of later Windows PowerShell versions.

Fix: F-87287r3_fix

Windows PowerShell 2.0 is not installed by default. Uninstall it if it has been installed. Open "Windows PowerShell". Enter "Uninstall-WindowsFeature -Name PowerShell-v2". Alternately: Use the "Remove Roles and Features Wizard" and deselect "Windows PowerShell 2.0 Engine" under "Windows PowerShell".